JP2023534623A - 多層複合冷間圧延鋼板およびその製造方法 - Google Patents
多層複合冷間圧延鋼板およびその製造方法 Download PDFInfo
- Publication number
- JP2023534623A JP2023534623A JP2022580166A JP2022580166A JP2023534623A JP 2023534623 A JP2023534623 A JP 2023534623A JP 2022580166 A JP2022580166 A JP 2022580166A JP 2022580166 A JP2022580166 A JP 2022580166A JP 2023534623 A JP2023534623 A JP 2023534623A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- rolled steel
- intermediate layer
- composite cold
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 142
- 239000010960 cold rolled steel Substances 0.000 title claims abstract description 114
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000010410 layer Substances 0.000 claims abstract description 157
- 239000002344 surface layer Substances 0.000 claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 16
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 238000000137 annealing Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 8
- 238000005554 pickling Methods 0.000 claims abstract description 8
- 238000005496 tempering Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052729 chemical element Inorganic materials 0.000 claims description 18
- 229910052748 manganese Inorganic materials 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 229910000859 α-Fe Inorganic materials 0.000 claims description 9
- 238000005098 hot rolling Methods 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 229910052758 niobium Inorganic materials 0.000 claims description 6
- 229910001563 bainite Inorganic materials 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 229910001567 cementite Inorganic materials 0.000 claims description 5
- 238000005097 cold rolling Methods 0.000 claims description 5
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 230000003111 delayed effect Effects 0.000 abstract description 8
- 238000005406 washing Methods 0.000 abstract 1
- 239000011572 manganese Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 8
- 229910052717 sulfur Inorganic materials 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000002905 metal composite material Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229910000617 Mangalloy Inorganic materials 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910000937 TWIP steel Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 1
- 238000007545 Vickers hardness test Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000010998 test method 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
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/011—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of iron alloys or steels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
-
- 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
-
- 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
- C21D1/26—Methods of annealing
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
-
- 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
-
- 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
- C21D8/02—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
- C21D8/0273—Final recrystallisation annealing
-
- 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
- C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
-
- 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
-
- 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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- 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
-
- 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
-
- 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
- C22C38/12—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/536—Hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/30—Iron, e.g. steel
-
- 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
- C21D2211/005—Ferrite
-
- 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
-
- 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
- C21D2251/00—Treating composite or clad material
- C21D2251/02—Clad material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
(1)各層ピレットを作製し、レイアップする;
(2)熱間圧延;
(3)酸洗いと冷間圧延;
(4)焼鈍:焼鈍温度を830-890℃とし、その後3-15℃/sの速度で700-800℃に冷却し、その後100℃未満の鋼板温度まで水冷する;
(5)酸洗い後に、鋼板を180-240℃まで再加熱し、200-600sの焼き戻し時間で焼き戻しを行う。
従来技術に比べると、本発明による多層複合冷間圧延鋼板は、上表層と下表面の顕微組織中におけるオーステナイトの相比例≧95%。重要なのは、本発明において、表層のオーステナイト高マンガン鋼が水素の拡散を防ぐ効果を有するため、鋼板内部の水素含有量を有効に低減し、多層複合冷間圧延鋼板の耐水素割れ性能を高めることができる。また、表層に採用されるオーステナイト高マンガン鋼は、高強度と超高成形性という特徴を有するため、複合鋼板の湾曲性能を有効に改善できる。
本発明による実施例1-9の多層複合冷間圧延鋼板は、いずれも以下のステップを採用して作製した:
(1)表1に示される化学成分によって各層のピレットを作製し、レイアップした:各複合層の板スラブ原料を、比例に従って、複合板の比例を満たす厚さまで圧延した;各複合層の隣接する界面を洗い、酸化皮膜などの不純物を除去する;各複合層が接触する境界を溶接密封し、複合層の間の酸素ガスを除去するために真空引きし、その後複合レイアップを圧延した。
(3)酸洗いと冷間圧延;
(4)焼鈍:焼鈍温度を830-890℃とし、その後3-15℃/sの速度で700-800℃に冷却し、その後100℃未満の鋼板温度まで水冷した;
(5)酸洗い後に、鋼板を180-240℃まで再加熱し、200-600sの焼き戻し時間で焼き戻しを行った。
実施例1-3の多層複合冷間圧延鋼板は、上表層、下表層、および上表層と下表層の間にある中間層を有し、実施例1-3では中間層が一層の第一中間層だけを有し、第二中間層を有しない。
Claims (15)
- 鋼板の厚さ方向上に、上表層、下表層、および上表層と下表層の間にある中間層を有し、前記上表層と前記下表層それぞれの顕微組織中において、オーステナイトの相比例≧95%;前記中間層は、少なくとも一層の第一中間層を含み、前記第一中間層の顕微組織中において、マルテンサイトの相比例≧85%、多層複合冷間圧延鋼板。
- 前記第一中間層の顕微組織がさらに、フェライト、ベイナイト、残りのオーステナイト、セメンタイトおよび析出物の少なくとも一つを含む、請求項1に記載の多層複合冷間圧延鋼板。
- 前記第一中間層の硬度HV≧400;且つ/または前記第一中間層の引張強度≧1300MPa、請求項1に記載の多層複合冷間圧延鋼板。
- 前記中間層は、少なくとも一層の第二中間層をさらに含み、前記第二中間層の顕微組織中におけるフェライトの相比例≧70%;任意選択的に、前記第二中間層の顕微組織が、マルテンサイト、ベイナイト、残りのオーステナイト、セメンタイトおよび析出物の少なくとも一つを含む、請求項1に記載の多層複合冷間圧延鋼板。
- 前記中間層は二層の第二中間層を有する、請求項4に記載の多層複合冷間圧延鋼板。
- 前記第一中間層の厚さが、多層複合冷間圧延鋼板の合計厚さの80-95%を占める;且つ/または前記上表層と下表層の合計厚さが、多層複合冷間圧延鋼板の合計厚さの5-20%を占める、請求項1に記載の多層複合冷間圧延鋼板。
- 前記第二中間層の合計厚さが、多層複合冷間圧延鋼板の合計厚さに占める割合≦15%、請求項4に記載の多層複合冷間圧延鋼板。
- 前記多層複合冷間圧延鋼板の合計厚さが0.7-2.5mmである、請求項1に記載の多層複合冷間圧延鋼板。
- 前記多層複合冷間圧延鋼板は、下記性能の一つまたは複数を満たす、請求項1に記載の多層複合冷間圧延鋼板:全引張強度≧1180MPa、全降伏強度≧1050MPa、伸び率δが5%-8%であり、0.8*TSの応力レベルで1mol/Lの塩酸中に300時間を浸しても破裂が発生しない。
- 前記第一中間層は、Feの他に、以下の質量パーセントで下記化学元素をさらに含む:C:0.15~0.3%、Si:0-0.5%、Mn:1.0~1.8%、B≦0.004%、Al:0.02-0.1%、N≦0.005%、Ti:0.015-0.04%、請求項1に記載の多層複合冷間圧延鋼板。
- 前記第二中間層は、Fe以外に、以下の質量パーセント含有量で下記化学元素を含む、請求項4に記載の多層複合冷間圧延鋼板:C:0.001~0.1%、Si:0~1.5%、Mn:0.1~1.8%、Al:0.02~0.1%、N≦0.005%;任意選択的に、前記第二中間層がNb、V、Ti、Mo、Cr、Bの一つまたは複数をさらに含み、その質量パーセント合計≦1%。
- 前記上表層と下表層は、Feの他に、以下の質量パーセントで下記化学元素をさらに含む:C:0.4~0.8%、Mn:14~20%、Al:1.0~2.0%、N:0.001~0.003%、請求項1に記載の多層複合冷間圧延鋼板。
- 前記上表層と下表層は、RE:0.05~0.15%をさらに含有する、請求項12に記載の多層複合冷間圧延鋼板。
- 以下のステップを含む、請求項1-13のいずれ一項に記載の多層複合冷間圧延鋼板の製造方法:
(1)各層ピレットを作製し、レイアップする;
(2)熱間圧延;
(3)酸洗いと冷間圧延;
(4)焼鈍:焼鈍温度を830-890℃とし、その後3-15℃/sの速度で700-800℃に冷却し、その後100℃未満の鋼板温度まで水冷する;
(5)酸洗い後に、鋼板を180-240℃まで再加熱し、200-600sの焼き戻し時間で焼き戻しを行う。 - ステップ(2)では、ピレットを1150-1260℃に加熱し、その後熱間圧延を行い、仕上げ圧延温度を830-930℃とし、卷取温度を500-650℃とする、請求項14に記載の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010592319.3A CN113829697B (zh) | 2020-06-24 | 2020-06-24 | 一种多层复合冷轧钢板及其制造方法 |
CN202010592319.3 | 2020-06-24 | ||
PCT/CN2021/101581 WO2021259278A1 (zh) | 2020-06-24 | 2021-06-22 | 一种多层复合冷轧钢板及其制造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2023534623A true JP2023534623A (ja) | 2023-08-10 |
Family
ID=78965003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022580166A Pending JP2023534623A (ja) | 2020-06-24 | 2021-06-22 | 多層複合冷間圧延鋼板およびその製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230250502A1 (ja) |
EP (1) | EP4173818A4 (ja) |
JP (1) | JP2023534623A (ja) |
KR (1) | KR20230029693A (ja) |
CN (1) | CN113829697B (ja) |
WO (1) | WO2021259278A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115352145B (zh) * | 2022-06-27 | 2023-08-01 | 浙江蜂鸟新材料有限公司 | 一种阀片用复合钢及其制造方法 |
KR20240031793A (ko) * | 2022-09-01 | 2024-03-08 | 현대제철 주식회사 | 핫 스탬핑 부품 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2069985B1 (ja) * | 1969-12-19 | 1973-12-21 | Anvar | |
JP2614821B2 (ja) | 1994-04-06 | 1997-05-28 | 新日本製鐵株式会社 | 形状凍結性に優れた複合高強度鋼板 |
US8137819B2 (en) * | 2006-07-27 | 2012-03-20 | The University Of Tokyo | Multilayer steel and method for producing multilayer steel |
DE102008022709A1 (de) | 2008-05-07 | 2009-11-19 | Thyssenkrupp Steel Ag | Verwendung eines metallischen Verbundwerkstoffs in einer Fahrzeugstruktur |
US9631265B2 (en) * | 2011-05-25 | 2017-04-25 | Nippon Steel | Hot-rolled steel sheet and method for producing same |
JP6017341B2 (ja) * | 2013-02-19 | 2016-10-26 | 株式会社神戸製鋼所 | 曲げ性に優れた高強度冷延鋼板 |
KR101730292B1 (ko) * | 2013-07-01 | 2017-04-25 | 신닛테츠스미킨 카부시키카이샤 | 냉연 강판, 아연 도금 냉연 강판 및 그것들의 제조 방법 |
WO2015001367A1 (en) * | 2013-07-04 | 2015-01-08 | Arcelormittal Investigación Y Desarrollo Sl | Cold rolled steel sheet, method of manufacturing and vehicle |
CN106319355A (zh) * | 2015-06-17 | 2017-01-11 | 宝山钢铁股份有限公司 | 一种含稀土高锰冷轧钢板及其制造方法 |
KR101758567B1 (ko) * | 2016-06-23 | 2017-07-17 | 주식회사 포스코 | 강도 및 성형성이 우수한 클래드 강판 및 그 제조방법 |
CN106269865B (zh) * | 2016-11-07 | 2018-06-15 | 兰州理工大学 | 多层不锈钢金属复合板的轧制方法 |
CN108116006A (zh) * | 2016-11-30 | 2018-06-05 | 宝山钢铁股份有限公司 | 一种超级奥氏体不锈钢轧制复合钢板及其制造方法 |
KR20180070383A (ko) * | 2016-12-16 | 2018-06-26 | 주식회사 포스코 | 내지연파괴 특성이 우수한 고강도 클래드 강판 |
CN108239725B (zh) * | 2016-12-27 | 2020-08-25 | 宝山钢铁股份有限公司 | 一种高剪切强度轧制复合钢板及其制造方法 |
CN108504956B (zh) * | 2017-02-27 | 2020-07-28 | 宝山钢铁股份有限公司 | 高成型性冷轧超高强度复合钢板及其制造方法 |
CN106676410A (zh) * | 2017-03-02 | 2017-05-17 | 嘉兴博朗金属科技有限公司 | 一种多层复合不锈钢材料及其制造方法 |
CN109835013B (zh) * | 2017-11-28 | 2021-03-12 | 宝山钢铁股份有限公司 | 一种高强耐磨复合钢板及其制造方法 |
CN111235371B (zh) * | 2020-02-29 | 2021-07-27 | 上海材料研究所 | 一种具有层状复合结构的弹塑性阻尼钢板及其制造方法与应用 |
CN111319321B (zh) * | 2020-02-29 | 2021-09-10 | 上海材料研究所 | 具有增强低周疲劳性能的层状复合阻尼钢板及其制造方法 |
-
2020
- 2020-06-24 CN CN202010592319.3A patent/CN113829697B/zh active Active
-
2021
- 2021-06-22 EP EP21828209.3A patent/EP4173818A4/en active Pending
- 2021-06-22 KR KR1020227046220A patent/KR20230029693A/ko active Search and Examination
- 2021-06-22 US US18/012,315 patent/US20230250502A1/en active Pending
- 2021-06-22 WO PCT/CN2021/101581 patent/WO2021259278A1/zh unknown
- 2021-06-22 JP JP2022580166A patent/JP2023534623A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP4173818A4 (en) | 2023-12-20 |
CN113829697A (zh) | 2021-12-24 |
WO2021259278A1 (zh) | 2021-12-30 |
CN113829697B (zh) | 2022-12-16 |
KR20230029693A (ko) | 2023-03-03 |
EP4173818A1 (en) | 2023-05-03 |
US20230250502A1 (en) | 2023-08-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102100727B1 (ko) | 고성형성 초고강도 용융 아연 도금 강판 및 그의 제조방법 | |
JP4288138B2 (ja) | 熱間成形加工用鋼板 | |
JP6779320B2 (ja) | 強度及び成形性に優れたクラッド鋼板及びその製造方法 | |
JP5228062B2 (ja) | 溶接性に優れた高強度薄鋼板及びその製造方法 | |
CN101928875A (zh) | 具有良好成形性能的高强度冷轧钢板及其制备方法 | |
US9598755B2 (en) | High strength galvanized steel sheet having excellent deep drawability and stretch flangeability and method for manufacturing the same | |
KR101626233B1 (ko) | 고항복비 고강도 냉연 강판과 그 제조 방법 | |
WO2013150669A1 (ja) | 合金化溶融亜鉛めっき熱延鋼板およびその製造方法 | |
KR20130036763A (ko) | 가공성 및 내충격성이 우수한 고강도 냉연 강판 및 그 제조 방법 | |
JP2019523827A (ja) | 降伏強度に優れた超高強度高延性鋼板及びその製造方法 | |
WO2014187193A1 (zh) | 一种超高强度冷轧耐候钢板及其制造方法 | |
KR20130055021A (ko) | 딥 드로잉성 및 베이킹 경화성이 우수한 고강도 냉연 강판과 그 제조 방법 | |
JP2022501510A (ja) | 穴拡げ性が高い高強度冷延鋼板、高強度溶融亜鉛めっき鋼板、及びこれらの製造方法 | |
KR102469278B1 (ko) | 열간성형용 강재, 열간성형 부재 및 이들의 제조방법 | |
JP2023534623A (ja) | 多層複合冷間圧延鋼板およびその製造方法 | |
KR101439613B1 (ko) | 굽힘 가공성과 연신율이 우수한 고강도 고망간 강판 및 그 제조방법 | |
KR102020404B1 (ko) | 초고강도 고연성 강판 및 그 제조방법 | |
KR101568519B1 (ko) | 전단변형부 성형이방성 및 내피로특성이 우수한 열연강판 및 그 제조방법 | |
KR101778404B1 (ko) | 강도 및 성형성이 우수한 클래드 강판 및 그 제조방법 | |
KR101153485B1 (ko) | 딥드로잉성이 우수하고 고항복비를 갖는 고강도 냉연강판, 이를 이용한 용융아연도금강판, 합금화 용융아연도금강판 및 이들의 제조방법 | |
KR102209575B1 (ko) | 강도와 연성의 밸런스 및 가공성이 우수한 강판 및 그 제조방법 | |
KR102020514B1 (ko) | 확관 가공성이 향상된 페라이트계 스테인리스강 및 그 제조방법 | |
KR101372707B1 (ko) | 재질 균일성이 우수한 고강도 고탄소 열연강판 및 이의 제조방법 | |
KR101009839B1 (ko) | 고강도 고성형 강판의 제조방법 | |
JP2735381B2 (ja) | 耐面歪み、耐デント性を有する深絞り用冷延鋼板の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20221223 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20240116 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20240130 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20240425 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20240628 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20240716 |