JP5972870B2 - 機械加工性を向上させたオーステナイト−フェライトステンレス鋼 - Google Patents
機械加工性を向上させたオーステナイト−フェライトステンレス鋼 Download PDFInfo
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- JP5972870B2 JP5972870B2 JP2013517431A JP2013517431A JP5972870B2 JP 5972870 B2 JP5972870 B2 JP 5972870B2 JP 2013517431 A JP2013517431 A JP 2013517431A JP 2013517431 A JP2013517431 A JP 2013517431A JP 5972870 B2 JP5972870 B2 JP 5972870B2
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- 229910001220 stainless steel Inorganic materials 0.000 title claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 67
- 239000010959 steel Substances 0.000 claims description 67
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 238000004519 manufacturing process Methods 0.000 claims description 21
- 239000010949 copper Substances 0.000 claims description 18
- 229910052748 manganese Inorganic materials 0.000 claims description 17
- 229910052750 molybdenum Inorganic materials 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 17
- 229910000859 α-Fe Inorganic materials 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 16
- 229910001566 austenite Inorganic materials 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 229910052759 nickel Inorganic materials 0.000 claims description 15
- 229910052804 chromium Inorganic materials 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000005098 hot rolling Methods 0.000 claims description 8
- 239000011733 molybdenum Substances 0.000 claims description 8
- 238000010791 quenching Methods 0.000 claims description 8
- 230000000171 quenching effect Effects 0.000 claims description 8
- 229910052758 niobium Inorganic materials 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910001208 Crucible steel Inorganic materials 0.000 claims 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 27
- 230000007797 corrosion Effects 0.000 description 19
- 238000005260 corrosion Methods 0.000 description 19
- 239000002436 steel type Substances 0.000 description 19
- 239000011572 manganese Substances 0.000 description 16
- 230000015572 biosynthetic process Effects 0.000 description 13
- 239000011651 chromium Substances 0.000 description 12
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 7
- 238000009749 continuous casting Methods 0.000 description 7
- 239000010955 niobium Substances 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 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
- 239000011575 calcium Substances 0.000 description 3
- 230000001627 detrimental effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 239000011669 selenium Substances 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- CFJRGWXELQQLSA-UHFFFAOYSA-N azanylidyneniobium Chemical compound [Nb]#N CFJRGWXELQQLSA-UHFFFAOYSA-N 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 238000010622 cold drawing Methods 0.000 description 2
- 238000005261 decarburization Methods 0.000 description 2
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 229910052711 selenium Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 150000004763 sulfides Chemical class 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical class [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229940069428 antacid Drugs 0.000 description 1
- 239000003159 antacid agent Substances 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000006166 lysate Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 petrochemical Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- CADICXFYUNYKGD-UHFFFAOYSA-N sulfanylidenemanganese Chemical compound [Mn]=S CADICXFYUNYKGD-UHFFFAOYSA-N 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/003—Drawing materials of special alloys so far as the composition of the alloy requires or permits special drawing methods or sequences
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/002—Stainless steels
-
- 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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
-
- 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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/613—Gases; Liquefied or solidified normally gaseous material
-
- 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
- C21D6/004—Heat treatment of ferrous alloys containing Cr and 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
- 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
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
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- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
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- 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
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Description
−良好な鍛造性、
−良好な機械的特性、特に、アニールされた状態で、または溶解状態で設置された400または450MPaより大きい降伏強度限界および大きな厚みの板および棒上の良好な、好ましくは、20℃で100Jより大きく、−46℃で20Jより大きい衝撃強度、
−高い一般的耐食性、
−良好な機械加工性。
0.01%≦C≦0.10%、
20.0%≦Cr≦24.0%、
1.0%≦Ni≦3.0%、
0.12%≦N≦0.20%、
0.5%≦Mn≦2.0%、
1.6%≦Cu≦3.0%、
0.05%≦Mo≦1.0%、
W≦0.15%、
0.05%≦Mo+W/2≦1.0%、
0.2%≦Si≦1.5%、
Al≦0.05%、
V≦0.5%、
Nb≦0.5%、
Ti≦0.5%、
B≦0.003%、
Co≦0.5%、
REM≦0.1%、
Ca≦0.03%、
Mg≦0.1%、
Se≦0.005%、
O≦0.01%、
S≦0.030%、
P≦0.040%、
残部は、鉄および製造に起因する不純物であり、微構造は、オーステナイトおよび35から65体積%のフェライト、好ましくは35から55体積%のフェライトから構成され、組成は、さらに、以下の関係に従うオーステナイト−フェライトステンレス鋼である:
40≦IF≦65、好ましくは45≦IF≦55
ここで、IF=10%Cr+5.1%Mo+1.4%Mn+24.3%Si+35%Nb+71.5%Ti−595.4%C−245.1%N−9.3%Ni−3.3%Cu−99.8
およびIRCGCU≧32.0、好ましくは≧34.0
ここで、IRCGCU=%Cr+3.3%Mo+2%Cu+16%N+2.6%Ni−0.7%Mn
および0≦IU≦6.0
ここで、IU=3%Ni+%Cu+%Mn−100%C−25%N−2(%Cr+%Si)−6%Mo+45。
−0.12から0.18重量%の窒素含有量、
−2.0から2.8重量%の銅含有量、
−0.5重量%未満のモリブデン含有量、
−0.05重量%未満の炭素含有量。
−鋼のインゴットまたはスラブに本発明による組成を備え、
−1150から1280℃の温度で前記インゴットまたは前記スラブを熱間圧延して、板、帯またはコイルを得る。
−1150から1280℃の温度で前記インゴットまたは前記スラブを熱間圧延して、いわゆる四つ折判の板を得、次いで、
−900から1100℃の温度で熱処理を行い、
−空気中で急冷することによって前記板を冷却する。
−鋼の連続鋳造されたインゴットまたはブルームに本発明による組成を備え、
−1150から1280℃の温度から前記インゴットまたは前記ブルームを熱間圧延して、空気中で冷却された棒または水中で冷却されたワイヤ・コイルを得、
次いで場合により、
−900から1100℃の温度で熱処理を行い、
−急冷によって前記棒または前記コイルを冷却する。
冷却の終わりに、前記棒の冷間延伸または前記ワイヤの伸線加工を行う、
本発明によって得られた熱間圧延棒の冷間プロフィルを行う、
本発明によって得られた熱間圧延棒をビレットに切断し、次いで、1100℃から1280℃で前記ビレットの鍛造を行う。
IF=10%Cr+5.1%Mo+1.4%Mn+24.3%Si+35%Nb+71.5%Ti−595.4%C−245.1%N−9.3%Ni−3.3%Cu−99.8。
ここで、IRCGU=%Cr+3.3%Mo+2%Cu+16%N+2.6%Ni−0.7%Mn
0≦IU≦6.0
引張特性Rp0.2およびRmは、規格NFEN10002−1によって決定された。衝撃強度kVは、規格NFEN10045によって異なる温度で決定された。
これら旋削試験は、キスラーフォースプレートを装備した、最大5800rpmで作動する28kW旋盤RAMO RTN30で行われる。試験はすべて乾燥して行われた。使用された基準の先端は、二相ステンレス鋼に最適であると考えられる先端STELLRAM SP0819 CNMG120408E−4Eである。
−m/minで表された旋削速度VB15/0.15(VB15/0.15がより高いほど、機械加工性がより良好である。)
−チップ破損域ZFC(ZFCがより大きいほど、機械加工性がより良好である。)
試験は、効果的な機械加工の15分間、0.15mmの側面磨耗を発生する旋削速度を見出すことにある。試験は、被覆された炭化物の先端で規則的な旋削通過で行われる。設定されたパラメーターは次のとおりである:
−通過深さap=1.5mm
−供給f=0.25mm/回転
ZFCの値を決定する前に、最小切断速度Vcminを定める必要がある。
VCminの決定は、増大した速度で旋削通過によって行われる。非常に低い切断速度Vc(40m/分)でスタートし、通過の経過中にVb15/0.15より大きな速度に規則的に上昇する。エネルギーKcの記録は、直接曲線Kc=f(Vc)を進ませる。
−通過深さap=1.5mm
−供給f=0.25mm/回転
−VB15/0.15の条件下で旋削通過によって破壊された工具
得られた曲線は、大多数の場合の単調減少である。Vcminの値は、曲線の変曲に相当するものである。
Vcminの120%に等しい速度で、切断条件を変えて、一定速度で6秒の機械加工の試験を行う。このように、供給(0.1mm/回転から0.05mm/回転の1ステップ当たり0.4mm/回転まで)および通過深さ(0.5mmから0.5mmの1ステップ当たり4mmまで)のテーブルを一掃する。
溶解または活性の臨界電流は、23℃で2モル/Lで、硫酸媒体中でμA/cm2で付与されて決定された。ランダム電位測定が、最初に900秒間行われる;次に、動電位曲線が、−750mV/ECSから+1V/ECSまで10mV/分の速度でプロットされる。このように得られた分極曲線上で、臨界電流は、不動態領域に先立って明らかにされたピークの極大電流に相当する。
Claims (13)
- オーステナイト−フェライトステンレス鋼であって、この組成は、重量%で以下を含み:
0.01%≦C≦0.10%、
20.0%≦Cr≦24.0%、
1.0%≦Ni≦3.0%、
0.12%≦N≦0.20%、
0.5%≦Mn≦2.0%、
1.6%≦Cu≦3.0%、
0.05%≦Mo≦1.0%、
W≦0.15%、
0.05%≦Mo+W/2≦1.0%、
0.2%≦Si≦1.5%、
Al≦0.05%、
V≦0.5%、
Nb≦0.5%、
Ti≦0.5%、
B≦0.003%、
Co≦0.5%、
REM≦0.1%、
Ca≦0.03%、
Mg≦0.1%、
Se≦0.005%、
O≦0.01%、
S≦0.030%、
P≦0.040%、
残部は、鉄および製造に起因する不純物、ならびにオーステナイトおよび35から65体積%のフェライトから構成される微構造であり、組成は、さらに以下の関係に従う、オーステナイト−フェライトステンレス鋼:
40≦IF≦65
ここで、IF=10%Cr+5.1%Mo+1.4%Mn+24.3%Si+35%Nb+71.5%Ti−595.4%C−245.1%N−9.3%Ni−3.3%Cu−99.8
およびIRCGCU≧32.0
ここで、IRCGCU=%Cr+3.3%Mo+2%Cu+16%N+2.6%Ni−0.7%Mn
および0≦IU≦6.0
ここで、IU=3%Ni+%Cu+%Mn−100%C−25%N−2(%Cr+%Si)−6%Mo+45。 - IRCGU≧34
であることをさらに特徴とする、請求項1に記載の鋼。 - フェライトの割合は、35から55体積%であることをさらに特徴とする、請求項1または2のいずれか一項に記載の鋼。
- 45≦IF≦55
であることをさらに特徴とする、請求項1から3のいずれか一項に記載の鋼。 - 窒素含有量は、0.12から0.18重量%であることをさらに特徴とする、請求項1から4のいずれか一項に記載の鋼。
- 銅含有量は、2.0から2.8重量%であることをさらに特徴とする、請求項1から5のいずれか一項に記載の鋼。
- モリブデン含有量は、0.5重量%未満であることをさらに特徴とする、請求項1から6のいずれか一項に記載の鋼。
- 炭素含有量は、0.05重量%未満であることをさらに特徴とする、請求項1から7のいずれか一項に記載の鋼。
- 請求項1から8のいずれか一項に記載の鋼の組成および組織を有する熱延鋼板、帯またはコイルを製造する方法であって、
−鋼のインゴットまたはスラブが請求項1から8のいずれか一項に記載の組成を備え、
−1150から1280℃の温度で前記インゴットまたは前記スラブを熱間圧延して、板、帯またはコイルを得る、方法。 - 請求項9に記載の方法であって、
−1150から1280℃の温度で前記インゴットまたは前記スラブを熱間圧延して、板を得、
−900から1100℃の温度で熱処理を行い、
−空気中で急冷することによって前記板を冷却する、方法。 - 請求項1から8のいずれか一項に記載の鋼の組成および組織を有する熱間圧延棒またはワイヤを製造する方法であって、以下の(A)〜(D)、または、(A)及び(B)を含む方法において、
−(A)連続鋳造された鋼のインゴットまたはブルームが請求項1から8のいずれか一項に記載の組成を備え、
−(B)1150から1280℃の温度から前記インゴットまたは前記ブルームを熱間圧延して、空気中で冷却された棒または水中で冷却されたワイヤを得、
次いで、
−(C)900から1100℃の温度で熱処理を行い、
−(D)急冷によって前記棒または前記ワイヤを冷却する、方法。 - 冷却の終わりに、前記棒の冷間延伸または前記ワイヤの伸線加工を行う、請求項11に記載の方法。
- 鍛造鋼片を製造する方法であって、
請求項11の方法によって得られた熱間圧延棒を切断し、
次いで、1100℃から1280℃で鍛造を行う、方法。
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PCT/FR2010/000498 WO2012004464A1 (fr) | 2010-07-07 | 2010-07-07 | Acier inoxydable austéno-ferritique à usinabilité améliorée |
FRPCT/FR2010/000498 | 2010-07-07 | ||
PCT/FR2011/000394 WO2012004473A1 (fr) | 2010-07-07 | 2011-07-05 | Acier inoxydable austéno-ferritique à usinabilité améliorée |
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JP3271262B2 (ja) | 1994-12-16 | 2002-04-02 | 住友金属工業株式会社 | 耐食性にすぐれた二相ステンレス鋼 |
EP1867748A1 (fr) * | 2006-06-16 | 2007-12-19 | Industeel Creusot | Acier inoxydable duplex |
JP5072285B2 (ja) * | 2006-08-08 | 2012-11-14 | 新日鐵住金ステンレス株式会社 | 二相ステンレス鋼 |
SE530848C2 (sv) * | 2007-01-19 | 2008-09-30 | Sandvik Intellectual Property | Pansar för ballistiskt skydd som innefattar duplext rostfritt stål samt skottsäker väst innefattande detta pansar |
KR101767017B1 (ko) * | 2008-03-26 | 2017-08-09 | 닛폰 스틸 앤드 스미킨 스테인레스 스틸 코포레이션 | 용접 열 영향부의 내식성과 인성이 양호한 저합금 2상 스테인리스강 |
JP5511208B2 (ja) * | 2009-03-25 | 2014-06-04 | 新日鐵住金ステンレス株式会社 | 耐食性の良好な省合金二相ステンレス鋼材とその製造方法 |
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US20170121789A1 (en) | 2017-05-04 |
CA2804320C (en) | 2015-04-28 |
AU2011275610A1 (en) | 2013-01-24 |
BR112013000264A2 (pt) | 2016-05-24 |
US9587286B2 (en) | 2017-03-07 |
WO2012004464A1 (fr) | 2012-01-12 |
CA2804320A1 (en) | 2012-01-12 |
BR112013000264B1 (pt) | 2018-04-24 |
US9797025B2 (en) | 2017-10-24 |
KR20130034044A (ko) | 2013-04-04 |
DK2591134T3 (en) | 2015-04-20 |
CN103069031A (zh) | 2013-04-24 |
CN106119737A (zh) | 2016-11-16 |
SI2591134T1 (sl) | 2015-05-29 |
AU2011275610B2 (en) | 2014-06-05 |
EP2591134A1 (fr) | 2013-05-15 |
JP2013535567A (ja) | 2013-09-12 |
ES2534930T3 (es) | 2015-04-30 |
EP2591134B1 (fr) | 2015-01-21 |
WO2012004473A1 (fr) | 2012-01-12 |
US20130174948A1 (en) | 2013-07-11 |
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