FI112380B - Ultrahållfasta austenitåldrade stål med synnerligen god kryogenisk temperaturseghet - Google Patents
Ultrahållfasta austenitåldrade stål med synnerligen god kryogenisk temperaturseghet Download PDFInfo
- Publication number
- FI112380B FI112380B FI20001440A FI20001440A FI112380B FI 112380 B FI112380 B FI 112380B FI 20001440 A FI20001440 A FI 20001440A FI 20001440 A FI20001440 A FI 20001440A FI 112380 B FI112380 B FI 112380B
- Authority
- FI
- Finland
- Prior art keywords
- weight
- steel
- steel sheet
- temperature
- fine
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 236
- 239000010959 steel Substances 0.000 title claims description 236
- 229910001566 austenite Inorganic materials 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 33
- 229910052759 nickel Inorganic materials 0.000 claims description 28
- 229910000734 martensite Inorganic materials 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 23
- 238000010791 quenching Methods 0.000 claims description 19
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- 239000008187 granular material Substances 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 17
- 238000005275 alloying Methods 0.000 claims description 16
- 239000010955 niobium Substances 0.000 claims description 16
- 230000000171 quenching effect Effects 0.000 claims description 16
- 238000005098 hot rolling Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims description 9
- 229910052758 niobium Inorganic materials 0.000 claims description 9
- 238000003303 reheating Methods 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 230000000930 thermomechanical effect Effects 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- ZLANVVMKMCTKMT-UHFFFAOYSA-N methanidylidynevanadium(1+) Chemical class [V+]#[C-] ZLANVVMKMCTKMT-UHFFFAOYSA-N 0.000 claims description 2
- DBIMSKIDWWYXJV-UHFFFAOYSA-L [dibutyl(trifluoromethylsulfonyloxy)stannyl] trifluoromethanesulfonate Chemical compound CCCC[Sn](CCCC)(OS(=O)(=O)C(F)(F)F)OS(=O)(=O)C(F)(F)F DBIMSKIDWWYXJV-UHFFFAOYSA-L 0.000 claims 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 54
- 238000003466 welding Methods 0.000 description 22
- 238000007792 addition Methods 0.000 description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 16
- 230000009467 reduction Effects 0.000 description 15
- 239000011572 manganese Substances 0.000 description 13
- 239000010936 titanium Substances 0.000 description 13
- 230000032683 aging Effects 0.000 description 12
- 229910001563 bainite Inorganic materials 0.000 description 12
- 239000011651 chromium Substances 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- 238000005336 cracking Methods 0.000 description 10
- RMLPZKRPSQVRAB-UHFFFAOYSA-N tris(3-methylphenyl) phosphate Chemical compound CC1=CC=CC(OP(=O)(OC=2C=C(C)C=CC=2)OC=2C=C(C)C=CC=2)=C1 RMLPZKRPSQVRAB-UHFFFAOYSA-N 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 9
- 239000003381 stabilizer Substances 0.000 description 8
- 229910052748 manganese Inorganic materials 0.000 description 7
- 230000007704 transition Effects 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 229910000851 Alloy steel Inorganic materials 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 4
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000001953 recrystallisation Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 4
- 229910052720 vanadium Inorganic materials 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- INZDTEICWPZYJM-UHFFFAOYSA-N 1-(chloromethyl)-4-[4-(chloromethyl)phenyl]benzene Chemical compound C1=CC(CCl)=CC=C1C1=CC=C(CCl)C=C1 INZDTEICWPZYJM-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000001627 detrimental effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000750 progressive effect Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910000922 High-strength low-alloy steel Inorganic materials 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000010433 feldspar Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 235000012771 pancakes Nutrition 0.000 description 2
- 230000003389 potentiating effect Effects 0.000 description 2
- 238000004881 precipitation hardening Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 206010019909 Hernia Diseases 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241000282342 Martes americana Species 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001150 spermicidal effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/001—Heat treatment of ferrous alloys containing Ni
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
- C21D1/20—Isothermal quenching, e.g. bainitic hardening
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Metal Rolling (AREA)
- Laminated Bodies (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Claims (22)
1. Förfarande för framställning av en sadan stälplatta som har en mikrolaminatmikrostruktur, som omfattar företrädesvis cirka 2-10 volymprocent 5 austenitskikt och cirka 90-98 volymprocent tili största delen av finkornig mar-tensit och finkornig nedre bainit bestaende lameller, kännetecknat avatt nämnda förfarande omfattar följande steg: (a) uppvärmning av stälplattan tili en äteruppvärmningstemperatur, som är tillräckligt hög (i) för att göra stälplattan i Stora drag homogen, (ii) för att 10 upplösa i Stora drag alla i stälplattan närvarande niob- och vanadinkarbider och -karbonitrider och (iii) för att bilda fina utgängsaustenitkorn i stälplattan; (b) reducering av nämnda stälplattas tjocklek för att bilda en stälplatta med ett eller flera varmvalsningsstick pä ett första temperaturomräde där austeniten rekristalliseras; 15 (c) reducering av nämnda stälplatta vidare med ett eller flera varm valsningsstick pä ett andra temperaturomräde, som är ungefär under Tnr-tem-peraturen och ungefär ovanför Ar3-omvandlingstemperaturen; (d) släckning av nämnda stälplatta ungefär med avkylningshastighe-ten 10-40 °C/sekund (18-72 °F/s) tili en släckningsavslutningstemperatur 20 (QST), som är lägre än cirka Ms-omvandlingstemperaturen plus 100 °C :" *: (180 °F) och högre än cirka Ms-omvandlingstemperaturen; och :. (e) avslutning av nämnda släckning för att underlätta nämnda stäl- plattas omvandling tili en mikrolaminatmikrostruktur, som omfattar cirka 2-10 ]]][. volymprocent austenitskikt och cirka 90-98 volymprocent tili största delen av 25 finkornig martensit och finkornig nedre bainit bestäende lameller.
2. Förfarande enligt patentkrav 1,kännetecknat av att nämn- ’·**' da äteruppvärmningstemperatur i steg (a) är ungefär mellan värdena 955 °C och 1 065 ° (1 750-1 950 °F).
• · · • \: 3. Förfarande enligt patentkrav 1, kännetecknat av att storle- 30 ken pä nämnda utgängsaustenitkorn i steg (a) är mindre än cirka 120 pm. , > j ·.
4. Förfarande enligt patentkrav 1,kännetecknat av att nämn- !.. da stälplattas tjocklek reduceras cirka 30-70 % i steg (b).
‘; * ’ 5. Förfarande enligt patentkrav 1,kännetecknat av att nämn- .. / da stälplattas tjocklek reduceras cirka 40-80 % i steg (c). 31 112380
6. Förfarande enligt patentkrav 1, k ä n n e t e c k n a t av att det dessutom omfattar ett steg, där man later nämnda stälplatta nedkylas i luft fran nämnda släckningsavslutningstemperatur tili omgivningens temperatur.
7. Förfarande enligt patentkrav 1, k ä n n e t e c k n a t av att det 5 dessutom omfattar ett steg, där nämnda stälplatta hälls i Stora drag isotermiskt vid nämnda släckningsavslutningstemperatur under högst cirka 5 minuter.
8. Förfarande enligt patentkrav 1, k ä n n e t e c k n a t av att det dessutom omfattar ett steg, där nämnda stälplatta, som är vid nämnda släckningsavslutningstemperatur, nedkyls längsamt med en hastighet, som är 10 mindre än cirka 1,0 °C (sekund (1,8 °F/s) under en tid av högst cirka 5 minuter.
9. Förfarande enligt patentkrav 1, kännetecknat av att nämnda stälplatta i steg (a) omfattar järn och följande legeringsgrundämnen angivna som viktprocentandelar: cirka 0,04-0,12 % C, 15 minst cirka 1 % Ni, cirka 0,1-1,0 % Cu, cirka 0,1-0,8 % Mo, cirka 0,02-0,1 % Nb, cirka 0,008-0,03 % Ti, 20 cirka 0,001-0,05 % AI och cirka 0,002-0,005 % N.
10. Förfarande enligt patentkrav 9, kännetecknat av att i I t .:. nämnda stälplatta omfattar mindre än cirka 6 viktprocent Ni.
11. Förfarande enligt patentkrav 9, kännetecknat av att 25 nämnda stälplatta omfattar mindre än cirka 3 viktprocent Ni och dessutom • · ... cirka 0,5-2,5 viktprocent Mn.
12. Förfarande enligt patentkrav 9, kännetecknat av att • · *··· nämnda stälplatta dessutom omfattar ätminstone ett tilläggsämne, som väljs frän en grupp, som bestär (i) av högst cirka 1,0 viktprocentigt Cr, (ii) högst t · · : 30 cirka 0,5 viktprocentigt Si, (iii) cirka 0,02-0,10 viktprocentigt V och (iv) högst cirka 2,5 viktprocentigt Mn.
. 13. Förfarande enligt patentkrav 9, kännetecknat av att , ‘. t nämnda stälplatta dessutom omfattar cirka 0,0004-0,0020 viktprocent B. I
· ;' 14. Förfarande enligt patentkrav 1, kännetecknat av att efter 35 steg (e) har nämnda stälplatta en lägre DBTT än cirka -73 °C (-100 °F) bäde i 32 112380 nämnda grundplatta och dess HAZ och större brottgräns än 830 MPa (120 ksi).
15. Stalplatta med en mikrolaminatmikrostruktur, som omfattar före-trädesvis cirka 2-10 volymprocent austenitskikt och cirka 90-98 volymprocent 5 tili största delen av finkornig martensit och finkornig nedre bainit bestaende lameller, och som har större brottgräns än 830 MPa (120 ksi) och en lägre DBTT än cirka -73 °C (-100 °F) bäde i nämnda grundplatta och dess HAZ, kännetecknad avatt nämnda stälplatta framställs av en pä nytt upp-värmd stalplatta, som omfattar jäm och följande legeringsgrundämnen angivna 10 som viktprocentandelar: cirka 0,04-0,12 % C, minst cirka 1 % Ni, cirka 0,1-1,0 % Cu, cirka 0,1-0,8 % Mo, 15 cirka 0,02-0,1 % Nb, cirka 0,008-0,03 % Ti, cirka 0,001-0,05 % AI och cirka 0,002-0,005 % N.
16. Stalplatta enligt patentkrav 15, kännetecknad av att 20 nämnda stalplatta omfattar mindre än cirka 6 viktprocent Ni.
17. Stalplatta enligt patentkrav 15, kännetecknad av att .···. nämnda stalplatta omfattar mindre än cirka 3 viktprocent Ni och dessutom cir- « ‘I, ka 0,5-2,5 viktprocent Mn. ‘j
18. Stalplatta enligt patentkrav 15, kännetecknad av att den “·. 25 dessutom omfattar ätminstone ett tilläggsämne, som väljs frän en grupp, som I · I · ] * bestar (i) av högst cirka 1,0 viktprocentigt Cr, (ii) högst cirka 0,5 viktprocentigt Si, (iii) cirka 0,02-0,10 viktprocentigt V och (iv) högst cirka 2,5 viktprocentigt • ·« Mn.
19. Stalplatta enligt patentkrav 15, kännetecknad av att den : ’ * ]: 30 dessutom omfattar cirka 0,0004-0,0020 viktprocent B.
20. Stalplatta enligt patentkrav 15, kännetecknad av att nämnda mikrolaminatmikrostruktur optimeras att spricka för att nägorlunda ;‘t‘ maximera ruttens slingrighet med en termomekanisk kontrollerad valsningsbe- *·;·’ handling, som astadkommer en stor mängd storvinkelgränsytor mellan nämn- 35 da tili största delen av finkornig martensit och finkornig nedre bainit bestäende ·: lameller och nämnda austenitskikt. 112380 33
21. Förfarande för att förbättra stälplattans sprickframskridnings-motständ, kännetecknat av att nämnda förfarande omfattar behandling av nämnda stalplatta för att ästadkomma en sadan mikrolaminatmikrostruktur, som omfattar företrädesvis cirka 2-10 volymprocent austenitskikt och cirka 90- 5 98 volymprocent tili största delen av finkornig martensit och finkornig nedre ba-init bestäende lameller och vilken mikrolaminatmikrostruktur optimeras att spricka för att nägorlunda maximera ruttens slingrighet med en termomekanisk kontrollerad valsningsbehandling, som ästadkommer en stor mängd storvin-kelgränsytor mellan nämnda tili största delen av finkornig martensit och finkor-10 nig nedre bainit bestäende lameller och nämnda austenitskikt.
22. Förfarande enligt patentkrav 21, kännetecknat av att nämnda stälplattas nämnda sprickframskridningsmotständ förbättras ytterligare och sprickframskridningsmotständet för nämnda stälplattas HAZ i svetsad form förbättras genom tillsats av minst cirka 1,0 viktprocent Ni och minst cirka 0,1 15 viktprocent Cu och genom att nägorlunda minimera tillsatsen av BCC stabilise-rande grundämnen. < > » * 1 I ‘ 1 • » · Ml 1 · * f < I I » » · • I * I I » | • · · > I • I • · • · * I I > • 1 · ! i | I » » I < I I • I I « I I · < I I
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6825297P | 1997-12-19 | 1997-12-19 | |
| US6825297 | 1997-12-19 | ||
| PCT/US1998/012705 WO1999032670A1 (en) | 1997-12-19 | 1998-06-18 | Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |
| US9812705 | 1998-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI20001440A FI20001440A (sv) | 2000-06-16 |
| FI112380B true FI112380B (sv) | 2003-11-28 |
Family
ID=22081370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI20001440A FI112380B (sv) | 1997-12-19 | 2000-06-16 | Ultrahållfasta austenitåldrade stål med synnerligen god kryogenisk temperaturseghet |
Country Status (44)
Families Citing this family (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW436597B (en) * | 1997-12-19 | 2001-05-28 | Exxon Production Research Co | Process components, containers, and pipes suitable for containign and transporting cryogenic temperature fluids |
| US6254698B1 (en) * | 1997-12-19 | 2001-07-03 | Exxonmobile Upstream Research Company | Ultra-high strength ausaged steels with excellent cryogenic temperature toughness and method of making thereof |
| DE60132136T2 (de) * | 2000-02-29 | 2008-12-11 | Asahi Glass Co., Ltd. | Fluor-verbindungen und wasser- und ölabweisende zusammensetzungen |
| US6852175B2 (en) * | 2001-11-27 | 2005-02-08 | Exxonmobil Upstream Research Company | High strength marine structures |
| US7438477B2 (en) * | 2001-11-29 | 2008-10-21 | Ntn Corporation | Bearing part, heat treatment method thereof, and rolling bearing |
| ES2259176T3 (es) * | 2002-10-17 | 2006-09-16 | Ntn Corporation | Seguidor de leva de rodillo para un motor. |
| FR2847271B1 (fr) * | 2002-11-19 | 2004-12-24 | Usinor | Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue |
| FR2847270B1 (fr) * | 2002-11-19 | 2004-12-24 | Usinor | Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue |
| US7334943B2 (en) * | 2003-02-28 | 2008-02-26 | Ntn Corporation | Differential support structure, differential's component, method of manufacturing differential support structure, and method of manufacturing differential's component |
| JP4718781B2 (ja) * | 2003-02-28 | 2011-07-06 | Ｎｔｎ株式会社 | トランスミッションの構成部品および円錐ころ軸受 |
| JP2004301321A (ja) * | 2003-03-14 | 2004-10-28 | Ntn Corp | オルタネータ用軸受およびプーリ用軸受 |
| JP4152283B2 (ja) * | 2003-08-29 | 2008-09-17 | Ｎｔｎ株式会社 | 軸受部品の熱処理方法 |
| CN1894434B (zh) * | 2003-12-19 | 2010-06-02 | 新日本制铁株式会社 | 用于超高强度管线管的钢板和具有优异的低温韧度的超高强度管线管及其制造方法 |
| US7594762B2 (en) | 2004-01-09 | 2009-09-29 | Ntn Corporation | Thrust needle roller bearing, support structure receiving thrust load of compressor for car air-conditioner, support structure receiving thrust load of automatic transmission, support structure for continuously variable transmission, and support structure receivin |
| JP4540351B2 (ja) * | 2004-01-15 | 2010-09-08 | Ｎｔｎ株式会社 | 鋼の熱処理方法および軸受部品の製造方法 |
| CN100350065C (zh) * | 2004-12-08 | 2007-11-21 | 鞍钢股份有限公司 | 高抗拉强度低碳贝氏体厚钢板及其生产方法 |
| CN100350066C (zh) * | 2004-12-08 | 2007-11-21 | 鞍钢股份有限公司 | 高强韧性低碳贝氏体厚钢板及其生产方法 |
| CN100343408C (zh) * | 2004-12-08 | 2007-10-17 | 鞍钢股份有限公司 | 高抗拉强度高韧性低屈强比贝氏体钢及其生产方法 |
| US7214278B2 (en) * | 2004-12-29 | 2007-05-08 | Mmfx Technologies Corporation | High-strength four-phase steel alloys |
| CN1296509C (zh) * | 2005-03-10 | 2007-01-24 | 武汉钢铁(集团)公司 | 高强度易焊接时效硬化钢及其生产方法 |
| CN100372962C (zh) * | 2005-03-30 | 2008-03-05 | 宝山钢铁股份有限公司 | 屈服强度1100Mpa以上超高强度钢板及其制造方法 |
| JP2007046717A (ja) * | 2005-08-10 | 2007-02-22 | Ntn Corp | ジョイント用爪付き転動軸 |
| CN101191174B (zh) * | 2006-11-20 | 2010-05-12 | 宝山钢铁股份有限公司 | 抗拉强度750MPa级热轧相变诱发塑性钢及制造方法 |
| RU2478124C1 (ru) * | 2009-01-30 | 2013-03-27 | ДжФЕ СТИЛ КОРПОРЕЙШН | Толстый горячекатаный стальной лист с высоким пределом прочности при растяжении, обладающий высокой низкотемпературной ударной вязкостью, и способ его производства |
| EP2392681B1 (en) * | 2009-01-30 | 2019-03-13 | JFE Steel Corporation | Heavy gauge, high tensile strength, hot rolled steel sheet with excellent hic resistance and manufacturing method therefor |
| CN102021489A (zh) * | 2009-09-15 | 2011-04-20 | 鞍钢股份有限公司 | 一种易焊接时效高强度钢及其热处理工艺 |
| JP5126326B2 (ja) * | 2010-09-17 | 2013-01-23 | Ｊｆｅスチール株式会社 | 耐疲労特性に優れた高強度熱延鋼板およびその製造方法 |
| CN102011061A (zh) * | 2010-11-05 | 2011-04-13 | 钢铁研究总院 | 一种高性能含Cu钢及其热处理工艺 |
| KR101271974B1 (ko) * | 2010-11-19 | 2013-06-07 | 주식회사 포스코 | 극저온 인성이 우수한 고강도 강재 및 그 제조방법 |
| DE102010056264C5 (de) * | 2010-12-24 | 2020-04-09 | Voestalpine Stahl Gmbh | Verfahren zum Erzeugen gehärteter Bauteile |
| BR112013017180A2 (pt) * | 2011-01-28 | 2016-09-20 | Exxonmobil Upstream Res Co | metais de solda de alta dureza com superior resistência ao rasgamento dúctil |
| JP5348268B2 (ja) * | 2012-03-07 | 2013-11-20 | Ｊｆｅスチール株式会社 | 成形性に優れる高強度冷延鋼板およびその製造方法 |
| CN103215420B (zh) * | 2012-12-31 | 2015-02-04 | 西安石油大学 | 一种大变形管线钢双相组织的获取方法 |
| WO2014171427A1 (ja) | 2013-04-15 | 2014-10-23 | 新日鐵住金株式会社 | 熱延鋼板 |
| KR101523229B1 (ko) * | 2013-11-28 | 2015-05-28 | 한국생산기술연구원 | 저온 특성이 향상된 금속 재료 및 그 제조방법 |
| WO2015088523A1 (en) | 2013-12-11 | 2015-06-18 | ArcelorMittal Investigación y Desarrollo, S.L. | Cold rolled and annealed steel sheet |
| EP2905348B1 (de) | 2014-02-07 | 2019-09-04 | ThyssenKrupp Steel Europe AG | Hochfestes Stahlflachprodukt mit bainitisch-martensitischem Gefüge und Verfahren zur Herstellung eines solchen Stahlflachprodukts |
| KR101957078B1 (ko) | 2015-02-20 | 2019-03-11 | 신닛테츠스미킨 카부시키카이샤 | 열연 강판 |
| WO2016132549A1 (ja) | 2015-02-20 | 2016-08-25 | 新日鐵住金株式会社 | 熱延鋼板 |
| WO2016135898A1 (ja) | 2015-02-25 | 2016-09-01 | 新日鐵住金株式会社 | 熱延鋼板 |
| PL3263729T3 (pl) | 2015-02-25 | 2020-05-18 | Nippon Steel Corporation | Blacha stalowa cienka walcowana na gorąco |
| EP3495529B1 (en) | 2016-08-05 | 2021-03-03 | Nippon Steel Corporation | Steel sheet and plated steel sheet |
| KR102186320B1 (ko) | 2016-08-05 | 2020-12-03 | 닛폰세이테츠 가부시키가이샤 | 강판 및 도금 강판 |
| WO2018157136A1 (en) | 2017-02-27 | 2018-08-30 | Nucor Corporation | Thermal cycling for austenite grain refinement |
| US11005154B2 (en) | 2017-04-11 | 2021-05-11 | Hewlett-Packard Development Company, L.P. | Antennas in frames for display panels |
| CN110157867B (zh) * | 2019-04-29 | 2020-09-18 | 中国科学院金属研究所 | 一种大尺寸CrMo钢构件中白色异常组织的控制方法 |
| CN110230001B (zh) * | 2019-07-29 | 2020-07-03 | 东北大学 | 一种具有高塑性的超高强度弹簧钢及其制备方法 |
| CN110628993A (zh) * | 2019-10-16 | 2019-12-31 | 武汉钢铁集团鄂城钢铁有限责任公司 | 一种HB460MPa级高强度高韧性抗火切裂纹耐磨钢及其生产方法 |
| CN111286585B (zh) * | 2020-03-19 | 2022-02-08 | 紫荆浆体管道工程股份公司 | 一种超级贝氏体钢及其制备方法 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4512135A (en) * | 1982-06-12 | 1985-04-23 | The Mead Corporation | Locking mechanism for wrap-around cartons |
| JPS5913055A (ja) * | 1982-07-13 | 1984-01-23 | Sumitomo Metal Ind Ltd | ステンレス鋼およびその製造方法 |
| NL193218C (nl) | 1985-08-27 | 1999-03-03 | Nisshin Steel Company | Werkwijze voor de bereiding van roestvrij staal. |
| JPS636284A (ja) * | 1986-06-26 | 1988-01-12 | Nachi Fujikoshi Corp | 多段ステツプ流体制御弁 |
| JPS6362843A (ja) * | 1986-09-03 | 1988-03-19 | Kobe Steel Ltd | 電気亜鉛めつきした高強度ベ−リングフ−プ |
| JP2510783B2 (ja) * | 1990-11-28 | 1996-06-26 | 新日本製鐵株式会社 | 低温靭性の優れたクラッド鋼板の製造方法 |
| US5454883A (en) | 1993-02-02 | 1995-10-03 | Nippon Steel Corporation | High toughness low yield ratio, high fatigue strength steel plate and process of producing same |
| JP3550726B2 (ja) | 1994-06-03 | 2004-08-04 | Ｊｆｅスチール株式会社 | 低温靱性に優れた高張力鋼の製造方法 |
| US5545270A (en) | 1994-12-06 | 1996-08-13 | Exxon Research And Engineering Company | Method of producing high strength dual phase steel plate with superior toughness and weldability |
| US5531842A (en) | 1994-12-06 | 1996-07-02 | Exxon Research And Engineering Company | Method of preparing a high strength dual phase steel plate with superior toughness and weldability (LAW219) |
| US5545269A (en) | 1994-12-06 | 1996-08-13 | Exxon Research And Engineering Company | Method for producing ultra high strength, secondary hardening steels with superior toughness and weldability |
| US5900075A (en) | 1994-12-06 | 1999-05-04 | Exxon Research And Engineering Co. | Ultra high strength, secondary hardening steels with superior toughness and weldability |
| JPH08176659A (ja) | 1994-12-20 | 1996-07-09 | Sumitomo Metal Ind Ltd | 低降伏比高張力鋼の製造方法 |
| KR100206151B1 (ko) * | 1995-01-26 | 1999-07-01 | 다나카 미노루 | 저온인성이 뛰어난 용접성 고장력강 |
| US5755895A (en) | 1995-02-03 | 1998-05-26 | Nippon Steel Corporation | High strength line pipe steel having low yield ratio and excellent in low temperature toughness |
| JP3314295B2 (ja) | 1995-04-26 | 2002-08-12 | 新日本製鐵株式会社 | 低温靱性に優れた厚鋼板の製造方法 |
| JP3423490B2 (ja) * | 1995-06-30 | 2003-07-07 | 東京電力株式会社 | ゴム・プラスチック電力ケ−ブル用接続部 |
| JPH09235617A (ja) * | 1996-02-29 | 1997-09-09 | Sumitomo Metal Ind Ltd | 継目無鋼管の製造方法 |
| FR2745587B1 (fr) | 1996-03-01 | 1998-04-30 | Creusot Loire | Acier utilisable notamment pour la fabrication de moules pour injection de matiere plastique |
-
1998
- 1998-06-17 TW TW087109696A patent/TW454040B/zh not_active IP Right Cessation
- 1998-06-17 DZ DZ980140A patent/DZ2530A1/xx active
- 1998-06-18 EP EP98934146A patent/EP1047798A4/en not_active Withdrawn
- 1998-06-18 ID IDW20001390A patent/ID25499A/id unknown
- 1998-06-18 CN CN98812446A patent/CN1098358C/zh not_active Expired - Fee Related
- 1998-06-18 CH CH01229/00A patent/CH695315A5/de not_active IP Right Cessation
- 1998-06-18 PE PE1998000527A patent/PE89299A1/es not_active Application Discontinuation
- 1998-06-18 JP JP2000525584A patent/JP2001527153A/ja active Pending
- 1998-06-18 RU RU2000119125/02A patent/RU2203330C2/ru not_active IP Right Cessation
- 1998-06-18 HU HU0101606A patent/HU224520B1/hu not_active IP Right Cessation
- 1998-06-18 TN TNTNSN98100A patent/TNSN98100A1/fr unknown
- 1998-06-18 HR HR980345A patent/HRP980345B1/xx not_active IP Right Cessation
- 1998-06-18 TR TR2000/01796T patent/TR200001796T2/xx unknown
- 1998-06-18 GE GEAP19985470A patent/GEP20043271B/en unknown
- 1998-06-18 YU YU37600A patent/YU37600A/sh unknown
- 1998-06-18 NZ NZ505338A patent/NZ505338A/en unknown
- 1998-06-18 SK SK869-2000A patent/SK8692000A3/sk unknown
- 1998-06-18 RO ROA200000628A patent/RO120413B1/ro unknown
- 1998-06-18 DE DE19882880T patent/DE19882880B4/de not_active Expired - Fee Related
- 1998-06-18 CO CO98034681A patent/CO5060436A1/es unknown
- 1998-06-18 KR KR10-2000-7006833A patent/KR100519874B1/ko not_active IP Right Cessation
- 1998-06-18 WO PCT/US1998/012705 patent/WO1999032670A1/en not_active Application Discontinuation
- 1998-06-18 US US09/099,153 patent/US6251198B1/en not_active Expired - Fee Related
- 1998-06-18 CA CA002316970A patent/CA2316970C/en not_active Expired - Fee Related
- 1998-06-18 BR BR9813689-5A patent/BR9813689A/pt not_active IP Right Cessation
- 1998-06-18 AU AU83739/98A patent/AU739791B2/en not_active Ceased
- 1998-06-18 IL IL13684398A patent/IL136843A/en not_active IP Right Cessation
- 1998-06-18 UA UA2000074219A patent/UA59425C2/uk unknown
- 1998-06-18 AT AT0915398A patent/AT409267B/de not_active IP Right Cessation
- 1998-06-18 GB GB0013634A patent/GB2346895B/en not_active Expired - Fee Related
- 1998-06-18 PL PL98341292A patent/PL341292A1/xx unknown
- 1998-06-18 SI SI9820088A patent/SI20276A/sl not_active IP Right Cessation
- 1998-06-18 ZA ZA9805321A patent/ZA985321B/xx unknown
- 1998-06-18 ES ES200050042A patent/ES2181566B1/es not_active Expired - Fee Related
- 1998-06-19 AR ARP980102965A patent/AR013109A1/es unknown
- 1998-06-20 MY MYPI98002811A patent/MY119642A/en unknown
- 1998-06-20 EG EG71198A patent/EG22915A/xx active
- 1998-10-25 GC GCP199823 patent/GC0000036A/xx active
-
2000
- 2000-06-15 OA OA1200000171A patent/OA11424A/en unknown
- 2000-06-16 DK DK200000938A patent/DK175995B1/da not_active IP Right Cessation
- 2000-06-16 SE SE0002244A patent/SE523757C2/sv not_active IP Right Cessation
- 2000-06-16 FI FI20001440A patent/FI112380B/sv not_active IP Right Cessation
- 2000-06-19 NO NO20003174A patent/NO20003174L/no not_active Application Discontinuation
- 2000-07-18 BG BG104624A patent/BG104624A/xx unknown
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI112380B (sv) | Ultrahållfasta austenitåldrade stål med synnerligen god kryogenisk temperaturseghet | |
| FI112381B (sv) | Ultrahållfasta tvåfasstål med synnerligen god kryogenisk temperaturseghet | |
| US6159312A (en) | Ultra-high strength triple phase steels with excellent cryogenic temperature toughness | |
| KR100664890B1 (ko) | 강판, 이의 제조방법, 이의 균열 전파 저항성을 향상시키는 방법 및 오스테나이트 결정 길이 대 오스테나이트 결정 두께의 평균 비를 조절하는 방법 | |
| AU8151198A (en) | Ultra-high strength steels with excellent cryogenic temperature toughness | |
| CZ20002140A3 (cs) | Ultravysoce pevné vyzrálé oceli s vynikající houževnatostí za kryogenních teplot | |
| CZ20002141A3 (cs) | Ultravysoce pevné dvoufázové oceli s vynikající houževnatostí za kryogenních teplot | |
| MXPA00005795A (en) | Ultra-high strength dual phase steels with excellent cryogenic temperature toughness | |
| MXPA00005794A (en) | Ultra-high strength ausaged steels with excellent cryogenic temperature toughness |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |