JP7463408B2 - 冷間圧延及び被覆された鋼板並びにその製造方法 - Google Patents
冷間圧延及び被覆された鋼板並びにその製造方法 Download PDFInfo
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- JP7463408B2 JP7463408B2 JP2021571685A JP2021571685A JP7463408B2 JP 7463408 B2 JP7463408 B2 JP 7463408B2 JP 2021571685 A JP2021571685 A JP 2021571685A JP 2021571685 A JP2021571685 A JP 2021571685A JP 7463408 B2 JP7463408 B2 JP 7463408B2
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- steel sheet
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- coated steel
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- 229910000831 Steel Inorganic materials 0.000 title claims description 131
- 239000010959 steel Substances 0.000 title claims description 131
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229910001566 austenite Inorganic materials 0.000 claims description 27
- 229910052799 carbon Inorganic materials 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 25
- 229910001563 bainite Inorganic materials 0.000 claims description 24
- 229910000859 α-Fe Inorganic materials 0.000 claims description 20
- 239000010960 cold rolled steel Substances 0.000 claims description 17
- 238000000137 annealing Methods 0.000 claims description 16
- 229910000734 martensite Inorganic materials 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 230000000717 retained effect Effects 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000011572 manganese Substances 0.000 claims description 14
- 229910052748 manganese Inorganic materials 0.000 claims description 12
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 10
- 239000011651 chromium Substances 0.000 claims description 10
- 230000001186 cumulative effect Effects 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 229910052758 niobium Inorganic materials 0.000 claims description 8
- 239000010955 niobium Substances 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 238000005098 hot rolling Methods 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 238000005097 cold rolling Methods 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 239000011265 semifinished product Substances 0.000 claims description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000010583 slow cooling Methods 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000003303 reheating Methods 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 238000009749 continuous casting Methods 0.000 description 4
- 150000001247 metal acetylides Chemical class 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000001627 detrimental effect Effects 0.000 description 3
- 239000008397 galvanized steel Substances 0.000 description 3
- 230000000979 retarding effect Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000003618 dip coating Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- -1 titanium nitrides Chemical class 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 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
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000009864 tensile test 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
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
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- 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
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
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- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
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- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
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- C—CHEMISTRY; METALLURGY
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- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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- C21D6/008—Heat treatment of ferrous alloys containing Si
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- 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
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- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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- 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
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- 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
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- 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
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- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- 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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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
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- 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
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- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
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- C—CHEMISTRY; METALLURGY
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- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
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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
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Description
780MPa以上、好ましくは800MPaを超える極限引張強さ、
18%以上、好ましくは20%を超える全伸び
を同時に有する冷間圧延鋼板を利用可能にすることによって、これらの問題を解決することである。
Ac3=955-350C-25Mn+51Si+106Nb+100Ti+68Al-11Cr-33Ni-16Cu+67Mo
式中、元素含有量は重量パーセントで表される。
表2に表1の鋼に対して実施された焼鈍処理パラメータをまとめる。鋼組成物A~Gは、本発明による鋼板の製造にかなう。表2はまた、Ac1及びAc3の一覧を示す。これらのAc1及びAc3は、本発明の鋼及び参照の鋼について、以下のように定義される。
Ac3=955-350C-25Mn+51Si+106Nb+100Ti+68Al-11Cr-33Ni-16Cu+67Mo
式中、元素含有量は重量パーセントで表される。
表3は、本発明の鋼及び参照の鋼の両方の微細組織を決定するための走査型電子顕微鏡などの種々の顕微鏡で規格に従って行われた試験の結果を例示する。
表4は、本発明の鋼及び参照の鋼の両方の機械的特性を例示する。引張強さ、降伏強さ及び全伸びを決定するために、JIS Z2241規格に従って引張試験を行う。
Claims (26)
- 冷間圧延及び被覆された鋼板であって、質量パーセントで表される、以下の元素
0.12%≦炭素≦0.2%
1.7%≦マンガン≦2.10%
0.1%≦ケイ素≦0.5%
0.1%≦アルミニウム≦0.8%
0.1%≦クロム≦0.5%
0%≦リン≦0.09%
0%≦硫黄≦0.09%
0%≦窒素≦0.09%
を含む組成を有し、以下の任意元素のうちの1つ以上
ニッケル≦3%
ニオブ≦0.1%
チタン≦0.1%
カルシウム≦0.005%
銅≦2%
モリブデン≦0.5%
バナジウム≦0.1%
ホウ素≦0.003%
セリウム≦0.1%
マグネシウム≦0.010%
ジルコニウム≦0.010%
を含有することができ、組成の残部が、鉄及び加工に起因する不可避不純物から構成され、前記鋼板の微細組織が、面積分率で、10~60%のベイナイト、25~55%のフェライト、残留オーステナイト中の炭素含有量が0.7%~1%である5%~15%の残留オーステナイト、及び5%~18%のマルテンサイトを含み、ベイナイト及びフェライトの累積量が少なくとも70%である、冷間圧延及び被覆された鋼板。 - 組成が0.1%~0.4%のケイ素を含む、請求項1に記載の冷間圧延及び被覆された鋼板。
- 組成が0.12%~0.19%の炭素を含む、請求項1又は2に記載の冷間圧延及び被覆された鋼板。
- 組成が0.2%~0.8%のアルミニウムを含む、請求項1~3のいずれか一項に記載の冷間圧延及び被覆された鋼板。
- 組成が1.7%~2.08%のマンガンを含む、請求項1~4のいずれか一項に記載の冷間圧延及び被覆された鋼板。
- 組成が0.1%~0.4%のクロムを含む、請求項1~5のいずれか一項に記載の冷間圧延及び被覆された鋼板。
- 組成が1.8%~2.08%のマンガンを含む、請求項5に記載の冷間圧延及び被覆された鋼板。
- 組成が0.14%~0.18%の炭素を含む、請求項3に記載の冷間圧延及び被覆された鋼板。
- 炭素及びマンガンの累積量が2.1%~2.25%である、請求項1~8のいずれか一項に記載の冷間圧延及び被覆された鋼板。
- ケイ素及びアルミニウムの累積量が0.5%~0.9%である、請求項1~9のいずれか一項に記載の冷間圧延及び被覆された鋼板。
- フェライト及びベイナイトの累積量が74%以上であり、フェライトの割合が少なくとも30%である、請求項1~10のいずれか一項に記載の冷間圧延及び被覆された鋼板。
- 残留オーステナイトの炭素含有量が0.7%~0.9%である、請求項1~11のいずれか一項に記載の冷間圧延及び被覆された鋼板。
- 残留オーステナイトの炭素含有量が0.7%~0.8%である、請求項12に記載の冷間圧延及び被覆された鋼板。
- ベイナイトが20%~60%である、請求項1~13のいずれか一項に記載の冷間圧延及び被覆された鋼板。
- マルテンサイトが5%~15%である、請求項1~14のいずれか一項に記載の冷間圧延及び被覆された鋼板。
- 前記鋼板が、780MPa以上の極限引張強さ及び18%以上の全伸びを有する、請求項1~15のいずれか一項に記載の冷間圧延及び被覆された鋼板。
- 前記鋼板が、800MPa以上の極限引張強さ及び20%以上の全伸びを有する、請求項16に記載の冷間圧延及び被覆された鋼板。
- 冷間圧延及び被覆された鋼板の製造方法であって、以下の連続する
請求項1~10のいずれか一項に記載の鋼組成を有する半製品を提供するステップと、
前記半製品を1000℃~1280℃の温度に再加熱するステップと、
熱間圧延仕上げ温度がAc3を超えるように、Ac3~Ac3+100℃の温度範囲において前記半製品を圧延して、熱間圧延鋼を得るステップと、
熱間圧延鋼を30℃/秒を超える冷却速度で475℃~650℃である巻取り温度まで冷却し、前記熱間圧延鋼を巻き取るステップと、
前記熱間圧延鋼を室温まで冷却するステップと、
任意に、前記熱間圧延鋼板にスケール除去処理を実施するステップと、
任意に、熱間圧延鋼板に400℃~750℃で焼鈍を実施するステップと
任意に、前記熱間圧延鋼板にスケール除去処理を実施するステップと、
前記熱間圧延鋼板を35~90%の圧下率で冷間圧延して、冷間圧延鋼板を得るステップと、
前記冷間圧延鋼板を2段階の加熱で焼鈍するステップであって、
o第1の段階が、鋼板を室温から600℃~750℃の温度T1まで、少なくとも3℃/秒の加熱速度HR1で加熱することから開始し、
o第2の段階が、さらに鋼板をT1からAc1~Ac3の均熱温度T2まで、HR2がHR1よりも遅い15℃/秒以下の加熱速度HR2で加熱することから開始する、ステップと、
次に、T2で10~500秒間焼鈍を実施するステップと、
次に、冷間圧延鋼板をT2から375℃~480℃の過時効温度Toverまで少なくとも10℃/秒の平均冷却速度で冷却するステップであって、かかる冷却が、T2から600℃~750℃の温度Tscの任意の徐冷サブステップを2℃/秒以下の徐冷速度で含むことができる、ステップと、
次に、前記冷間圧延鋼板をToverで5~500秒間過時効処理し、420℃~680℃の温度範囲にして被覆を容易にするステップと、
次に、冷間圧延板を被覆して、冷間圧延被覆鋼板を得るステップと、
を含み、
得られる冷間圧延被覆鋼板の微細組織が、面積分率で、10~60%のベイナイト、25~55%のフェライト、残留オーステナイト中の炭素含有量が0.7%~1%である5%~15%の残留オーステナイト、及び5%~18%のマルテンサイトを含み、ベイナイト及びフェライトの累積量が少なくとも70%である、
方法。 - 巻取り温度が475℃~625℃である、請求項18に記載の方法。
- 仕上げ圧延温度が850℃を超える、請求項18又は19に記載の方法。
- 焼鈍後の平均冷却速度が15℃/秒を超える、請求項18~20のいずれか一項に記載の方法。
- T2がAc1+30℃~Ac3であり、T2が焼鈍の終了時に少なくとも60%のオーステナイトの存在を確実にするように選択される、請求項18~21のいずれか一項に記載の方法。
- T2がAc1+30℃~Ac3であり、T2が焼鈍の終了時に少なくとも70%のオーステナイトの存在を確実にするように選択される、請求項22に記載の方法。
- 過時効Toverのための温度が380℃~460℃である、請求項18~23のいずれか一項に記載の方法。
- 冷間圧延鋼板を加熱する第1の段階が、650℃~750℃の温度T1で、少なくとも5℃/秒の加熱速度HR1で終了する、請求項18~24のいずれか一項に記載の方法。
- 車両の構造部品又は安全部品の製造のための、請求項1~17のいずれか一項に記載の鋼板又は請求項18~25の方法に従って製造された鋼板の使用。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008231480A (ja) | 2007-03-19 | 2008-10-02 | Jfe Steel Kk | 高強度冷延鋼板及び高強度冷延鋼板の製造方法 |
JP2008291304A (ja) | 2007-05-24 | 2008-12-04 | Jfe Steel Kk | 深絞り性と強度−延性バランスに優れた高強度冷延鋼板および高強度溶融亜鉛めっき鋼板ならびにその製造方法 |
JP2013515167A (ja) | 2009-12-21 | 2013-05-02 | タタ、スティール、アイモイデン、ベスローテン、フェンノートシャップ | 高強度溶融亜鉛めっき鋼帯 |
JP2014531511A (ja) | 2011-09-13 | 2014-11-27 | タタ、スティール、アイモイデン、ベスローテン、フェンノートシャップTata Steel Ijmuiden Bv | 高強度溶融亜鉛メッキ鋼帯 |
CN105247089A (zh) | 2013-03-11 | 2016-01-13 | 塔塔钢铁艾默伊登有限责任公司 | 高强度热浸镀锌复相钢带材 |
CN111979489A (zh) | 2020-09-07 | 2020-11-24 | 鞍钢股份有限公司 | 一种780MPa级高塑性冷轧DH钢及其制备方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101130837B1 (ko) * | 2008-04-10 | 2012-03-28 | 신닛뽄세이테쯔 카부시키카이샤 | 구멍 확장성과 연성의 균형이 극히 양호하고, 피로 내구성도 우수한 고강도 강판과 아연 도금 강판 및 이 강판들의 제조 방법 |
CN102409222B (zh) * | 2010-09-21 | 2014-09-03 | 鞍钢股份有限公司 | 连续退火或热镀锌的冷轧相变诱导塑性钢板及其制备方法 |
JP5298114B2 (ja) * | 2010-12-27 | 2013-09-25 | 株式会社神戸製鋼所 | 塗膜密着性と加工性に優れた高強度冷延鋼板、及びその製造方法 |
KR101609331B1 (ko) * | 2011-09-30 | 2016-04-05 | 신닛테츠스미킨 카부시키카이샤 | 합금화 용융 아연 도금 강판 |
PL2803748T3 (pl) * | 2012-01-13 | 2018-08-31 | Nippon Steel & Sumitomo Metal Corporation | Wyrób kształtowany przez tłoczenie na gorąco i sposób wytwarzania wyrobu kształtowanego przez tłoczenie na gorąco |
ES2684342T3 (es) * | 2012-04-10 | 2018-10-02 | Nippon Steel & Sumitomo Metal Corporation | Elemento de absorción de impactos y método para su fabricación |
CN104520448B (zh) * | 2012-06-05 | 2017-08-11 | 蒂森克虏伯钢铁欧洲股份公司 | 钢材,扁钢产品及该扁钢产品的制造方法 |
KR20180025852A (ko) * | 2015-07-01 | 2018-03-09 | 타타 스틸 이즈무이덴 베.뷔. | 고강도 용융 침지 아연도금 강 스트립 |
WO2017125773A1 (en) * | 2016-01-18 | 2017-07-27 | Arcelormittal | High strength steel sheet having excellent formability and a method of manufacturing the same |
EP3399066B1 (en) * | 2016-03-07 | 2020-09-23 | JFE Steel Corporation | High-strength steel sheet and method for manufacturing the same |
JP6315044B2 (ja) * | 2016-08-31 | 2018-04-25 | Jfeスチール株式会社 | 高強度鋼板およびその製造方法 |
-
2019
- 2019-06-03 WO PCT/IB2019/054576 patent/WO2020245626A1/en active Application Filing
-
2020
- 2020-04-02 MA MA056012A patent/MA56012A/fr unknown
- 2020-04-02 WO PCT/IB2020/053154 patent/WO2020245668A1/en active Application Filing
- 2020-04-02 JP JP2021571685A patent/JP7463408B2/ja active Active
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- 2020-04-02 CN CN202080036788.5A patent/CN113840930A/zh active Pending
- 2020-04-02 MX MX2021014459A patent/MX2021014459A/es unknown
- 2020-04-02 CA CA3141566A patent/CA3141566C/en active Active
- 2020-04-02 US US17/616,114 patent/US20220325369A1/en active Pending
-
2021
- 2021-10-21 ZA ZA2021/08100A patent/ZA202108100B/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008231480A (ja) | 2007-03-19 | 2008-10-02 | Jfe Steel Kk | 高強度冷延鋼板及び高強度冷延鋼板の製造方法 |
JP2008291304A (ja) | 2007-05-24 | 2008-12-04 | Jfe Steel Kk | 深絞り性と強度−延性バランスに優れた高強度冷延鋼板および高強度溶融亜鉛めっき鋼板ならびにその製造方法 |
JP2013515167A (ja) | 2009-12-21 | 2013-05-02 | タタ、スティール、アイモイデン、ベスローテン、フェンノートシャップ | 高強度溶融亜鉛めっき鋼帯 |
JP2014531511A (ja) | 2011-09-13 | 2014-11-27 | タタ、スティール、アイモイデン、ベスローテン、フェンノートシャップTata Steel Ijmuiden Bv | 高強度溶融亜鉛メッキ鋼帯 |
CN105247089A (zh) | 2013-03-11 | 2016-01-13 | 塔塔钢铁艾默伊登有限责任公司 | 高强度热浸镀锌复相钢带材 |
CN111979489A (zh) | 2020-09-07 | 2020-11-24 | 鞍钢股份有限公司 | 一种780MPa级高塑性冷轧DH钢及其制备方法 |
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WO2020245626A1 (en) | 2020-12-10 |
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MA56012A (fr) | 2022-04-06 |
KR20220003081A (ko) | 2022-01-07 |
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