JP2017519107A - 高い機械的強度および延性特性を有する二重焼鈍鋼板、このような板の製造方法および使用 - Google Patents
高い機械的強度および延性特性を有する二重焼鈍鋼板、このような板の製造方法および使用 Download PDFInfo
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- JP2017519107A JP2017519107A JP2016568522A JP2016568522A JP2017519107A JP 2017519107 A JP2017519107 A JP 2017519107A JP 2016568522 A JP2016568522 A JP 2016568522A JP 2016568522 A JP2016568522 A JP 2016568522A JP 2017519107 A JP2017519107 A JP 2017519107A
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- annealing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 77
- 239000010959 steel Substances 0.000 title claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 48
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 47
- 239000000203 mixture Substances 0.000 claims abstract description 31
- 229910001563 bainite Inorganic materials 0.000 claims abstract description 27
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 21
- 230000000717 retained effect Effects 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 238000000137 annealing Methods 0.000 claims description 79
- 238000001816 cooling Methods 0.000 claims description 29
- 238000002791 soaking Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 15
- 239000011265 semifinished product Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 12
- 239000011701 zinc Substances 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 238000005097 cold rolling Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- 229910052725 zinc Inorganic materials 0.000 claims description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 9
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 8
- 238000003303 reheating Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 238000005098 hot rolling Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 3
- 239000010960 cold rolled steel Substances 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 7
- 229910052796 boron Inorganic materials 0.000 abstract description 6
- 229910052804 chromium Inorganic materials 0.000 abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 abstract description 4
- 229910052719 titanium Inorganic materials 0.000 abstract description 4
- 229910052720 vanadium Inorganic materials 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 19
- 239000010955 niobium Substances 0.000 description 19
- 239000011572 manganese Substances 0.000 description 18
- 230000035882 stress Effects 0.000 description 18
- 229910052799 carbon Inorganic materials 0.000 description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 16
- 229910052710 silicon Inorganic materials 0.000 description 13
- 229910052758 niobium Inorganic materials 0.000 description 12
- 230000009466 transformation Effects 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 11
- 239000011651 chromium Substances 0.000 description 11
- 229910052748 manganese Inorganic materials 0.000 description 11
- 238000005096 rolling process Methods 0.000 description 11
- 239000010703 silicon Substances 0.000 description 11
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 8
- 230000006641 stabilisation Effects 0.000 description 6
- 238000011105 stabilization Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 150000001247 metal acetylides Chemical class 0.000 description 5
- 229910052750 molybdenum Inorganic materials 0.000 description 5
- 229910001568 polygonal ferrite Inorganic materials 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229910001567 cementite Inorganic materials 0.000 description 3
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005261 decarburization Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 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 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000004881 precipitation hardening Methods 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910015372 FeAl Inorganic materials 0.000 description 1
- -1 MnS Chemical compound 0.000 description 1
- 101100269674 Mus musculus Alyref2 gene Proteins 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011197 physicochemical method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- CADICXFYUNYKGD-UHFFFAOYSA-N sulfanylidenemanganese Chemical compound [Mn]=S CADICXFYUNYKGD-UHFFFAOYSA-N 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 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
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0436—Cold 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
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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
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0405—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing of ferrous alloys
-
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0426—Hot rolling
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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
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
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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
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0463—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment following hot rolling
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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
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0478—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular surface treatment
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- C—CHEMISTRY; METALLURGY
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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
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0478—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular surface treatment
- C21D8/0489—Application of a tension-inducing coating
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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
- 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
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
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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
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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
- C22C38/002—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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- 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
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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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- 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
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- 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
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
- C22C38/18—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
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- 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
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
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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
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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- C22C—ALLOYS
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- 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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- 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
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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Abstract
Description
− 本発明による組成を有する鋼が得られ、
− この鋼が、半完成品に鋳造され、次いで
− この半完成品が、再加熱された半完成品を得るために1100℃から1280℃の間の温度Trechにされ、次いで
− この再加熱された半完成品が、熱間圧延板を得るために熱間圧延され、熱間圧延の終わりの温度Tflは、900℃以上であり、次いで
− この熱間圧延板が、巻回された熱間圧延板を得るために400から600℃の間の温度Tbobで巻回され、次いで
− この巻回された熱間圧延板が、周囲温度まで冷却され、次いで
− この巻回された熱間圧延板が、伸ばされて酸洗処理され、次いで
− この熱間圧延板が、冷間圧延板を得るために30から80%の間の加工率で冷間圧延され、次いで
− この冷間圧延板が、2から50℃/秒の間の速度VC1で、TS1=910.7−431.4*C−45.6*Mn+54.4*Si−13.5*Cr+52.2*Nbから950℃の間の温度Tsoaking1まで、30から200秒の間の期間tsoaking1の間加熱することにより、1回目に焼鈍され、式中の含有率は重量パーセントで表現され、次いで
− この板が、30℃/秒以上の速度で周囲温度まで冷却することにより冷却され、次いで
− この板が、2から50℃/秒の間の速度VC2で、Ac1からTS=906.5−440.6*C−44.5*Mn+49.2*Si−12.4*Cr+55.9*Nbの間の温度Tsoaking2まで、30から200秒の間の期間tsoaking2の間再加熱することにより、2回目に焼鈍され、次いで
− この板が、30℃/秒以上の速度で、420℃から480℃の間の冷却終了温度TOAまで冷却することにより冷却され、次いで
− この板が、5から120秒の間の期間tOAの間、420から480℃の温度範囲内に保持され、次いで
− 場合により、板を周囲温度まで冷却する前に、この板上にコーティングが施される
を含む方法である。
圧延終了温度:Tfl
巻回温度:TBOB
冷間圧延加工率
第1の焼鈍中の加熱速度:VC1
第1の焼鈍中の保持温度:Tsoaking1
第1の焼鈍中のTsoaking1での保持時間:tsoaking1
第1の焼鈍中の冷却速度:Vref1
第2の焼鈍中の冷却速度:VC2
第2の焼鈍中の保持温度:Tsoaking2
第2の焼鈍中のTsoaking1での保持時間:tsoaking2
第2の焼鈍中の冷却速度:Vref2
冷却終了温度TOA
温度TOAでの保持時間:tOA
計算された温度Ac1、TS1およびTS2(℃)
%F1:第1の焼鈍後のフェライトの面積パーセント
%M2:第2の焼鈍後のマルテンサイトの面積パーセント
%F2:第2の焼鈍後のフェライトの面積パーセント
%RA:第2の焼鈍後の残留オーステナイトの面積パーセント
%AM:第2の焼鈍後の焼鈍マルテンサイトの面積パーセント
%B:第2の焼鈍後のベイナイトの面積パーセント
降伏応力:Re
機械的強度:Rm
均一伸び:Al.Unif.
全伸び:Al.Total.
Claims (16)
- 組成が、重量パーセントで表現して、
0.20%≦C≦0.40%
0.8%≦Mn≦1.4%
1.60%≦Si≦3.00%
0.015≦Nb≦0.150%
Al≦0.1%
Cr≦1.0%
S≦0.006%
P≦0.030%
Ti≦0.05%
V≦0.05%
Mo<0.03%
B≦0.003%
N≦0.01%
を含み、組成の残りは、鉄および処理から生じる不可避の不純物により構成され、微細構造は、面積パーセントで、10から30%の残留オーステナイト、30から60%の焼鈍マルテンサイト、5から30%のベイナイト、10から30%の未加工マルテンサイトおよび10%未満のフェライトで構成される、鋼板。 - 組成が、重量パーセントで表現して、
0.22%≦C≦0.32%
を含む、請求項1に記載の鋼板。 - 組成が、重量パーセントで表現して、
1.0%≦Mn≦1.4%
を含む、請求項1または2に記載の鋼板。 - 組成が、重量パーセントで表現して、
1.8%≦Si≦2.5%
を含む、請求項1から3のいずれかに記載の鋼板。 - 組成が、重量パーセントで表現して、
Cr≦0.5%
を含む、請求項1から4のいずれかに記載の鋼板。 - 組成が、重量パーセントで表現して、
0.020%≦Nb≦0.13%
を含む、請求項1から5のいずれかに記載の鋼板。 - 亜鉛または亜鉛合金のコーティングを備える、請求項1から6のいずれかに記載の鋼板。
- アルミニウムまたはアルミニウム合金のコーティングを備える、請求項1から6のいずれかに記載の鋼板。
- 機械的強度が、980MPa以上であり、降伏応力が、650MPa以上であり、均一伸びが、15%以上であり、破断時伸びが、20%以上である、請求項1から8のいずれかに記載の鋼板。
- 二重焼鈍冷間圧延鋼板の製造方法であって、順に、
請求項1から6のいずれかに記載の組成を有する鋼が得られ、次いで
この鋼が、半完成品に鋳造され、次いで
この半完成品が、再加熱された半完成品を得るために1100℃から1280℃の間の温度Trechにされ、次いで
この再加熱された半完成品が、熱間圧延板を得るために熱間圧延され、熱間圧延の終わりの温度Tflは、900℃以上であり、次いで
この熱間圧延板が、巻回された熱間圧延板を得るために400から600℃の間の温度Tbobで巻回され、次いで
この巻回された熱間圧延板が、周囲温度まで冷却され、次いで
この巻回された熱間圧延板が、伸ばされて酸洗処理され、次いで
この熱間圧延板が、冷間圧延板を得るために30から80%の間の加工率で冷間圧延され、次いで
この冷間圧延板が、2から50℃/秒の間の速度VC1で、TS1=910.7−431.4*C−45.6*Mn+54.4*Si−13.5*Cr+52.2*Nbから950℃の間の温度Tsoaking1まで、30から200秒の間の期間tsoaking1の間加熱することにより、1回目に焼鈍され、式中の含有率は重量パーセントで表現され、次いで
この板が、30℃/秒以上の速度で周囲温度まで冷却することにより冷却され、次いで
この板が、2から50℃/秒の間の速度VC2で、Ac1からTS2=906.5−440.6*C−44.5*Mn+49.2*Si−12.4*Cr+55.9*Nbの間の温度Tsoaking2まで、30から200秒の間の期間tsoaking2の間再加熱することにより、2回目に焼鈍され、式中の含有率は、重量パーセントで表現され、次いで
この板が、30℃/秒以上の速度で、420℃から480℃の間の冷却終了温度TOAまで冷却することにより冷却され、次いで
この板が、5から120秒の間の期間tOAの間、420℃から480℃の温度範囲内に保持され、次いで
場合により、この冷間圧延および焼鈍された板上にコーティングが施され、
この板が、周囲温度まで冷却される
各ステップを含む、製造方法。 - 冷間圧延の前に、巻回された熱間圧延板が加熱され、次いで5から24時間の間の期間、400℃から700℃の間の温度で保持されるように、前記板のいわゆるバッチ焼鈍がさらに行われる、請求項10に記載の製造方法。
- 板が、5から120秒の間、420から480℃の間の冷却終了温度TOAで等温的に保持される、請求項10または11に記載の製造方法。
- 二重焼鈍冷間圧延板が、次いで、コーティングの堆積の前に0.1から3%の間の冷間圧延率で冷間圧延される、請求項10から12のいずれかに記載の製造方法。
- 板が、最終的に、10時間から48時間の間の保持時間tbaseの間、150℃から190℃の間の保持温度Tbaseまで加熱される、請求項10から13のいずれかに記載の製造方法。
- TOAでの保持の終わりに、以下の元素:アルミニウム、亜鉛、アルミニウム合金または亜鉛合金の1つの液体浴中で板が溶融めっきされる、請求項10から12のいずれかに記載の製造方法。
- 自動車部品の製造のための、請求項1から9のいずれかに記載の板、または請求項10から15のいずれかに記載の方法により製造された板の使用。
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IBPCT/IB2014/000785 | 2014-05-20 | ||
PCT/IB2014/000785 WO2015177582A1 (fr) | 2014-05-20 | 2014-05-20 | Tôle d'acier doublement recuite à hautes caractéristiques mécaniques de résistance et ductilité, procédé de fabrication et utilisation de telles tôles |
PCT/IB2015/000651 WO2015177615A1 (fr) | 2014-05-20 | 2015-05-07 | Tôle d'acier doublement recuite a hautes caracteristiques mecaniques de resistance et de ductilite, procede de fabrication et utilisation de telles tôles |
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KR20200064124A (ko) * | 2017-11-10 | 2020-06-05 | 아르셀러미탈 | 냉간 압연되고 열처리된 강시트 및 그 제조 방법 |
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US11365468B2 (en) | 2017-11-10 | 2022-06-21 | Arcelormittal | Cold rolled and heat treated steel sheet and a method of manufacturing thereof |
KR102466818B1 (ko) * | 2017-11-10 | 2022-11-14 | 아르셀러미탈 | 냉간 압연되고 열처리된 강시트 및 그 제조 방법 |
JP2023011853A (ja) * | 2017-11-10 | 2023-01-24 | アルセロールミタル | 冷間圧延熱処理鋼板及びその製造方法 |
JP2023011852A (ja) * | 2017-11-10 | 2023-01-24 | アルセロールミタル | 冷間圧延熱処理鋼板及びその製造方法 |
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US20170101695A1 (en) | 2017-04-13 |
TR201815496T4 (tr) | 2018-11-21 |
RU2016149784A3 (ja) | 2018-06-21 |
JP6433512B2 (ja) | 2018-12-05 |
RU2667947C2 (ru) | 2018-09-25 |
CN106604999A (zh) | 2017-04-26 |
ES2692848T3 (es) | 2018-12-05 |
HUE039794T2 (hu) | 2019-02-28 |
RU2016149784A (ru) | 2018-06-21 |
UA114877C2 (uk) | 2017-08-10 |
CN106604999B (zh) | 2018-04-10 |
MA39417A1 (fr) | 2017-04-28 |
KR20170126512A (ko) | 2017-11-17 |
KR20170002652A (ko) | 2017-01-06 |
CA2949855A1 (fr) | 2015-11-26 |
KR101987572B1 (ko) | 2019-06-10 |
MA39417B1 (fr) | 2017-12-29 |
BR112016026883B1 (pt) | 2021-02-09 |
US10995386B2 (en) | 2021-05-04 |
PL3146083T3 (pl) | 2019-05-31 |
EP3146083A1 (fr) | 2017-03-29 |
WO2015177582A1 (fr) | 2015-11-26 |
EP3146083B1 (fr) | 2018-07-25 |
CA2949855C (fr) | 2018-05-01 |
MX2016014990A (es) | 2017-03-31 |
KR101846116B1 (ko) | 2018-04-05 |
WO2015177615A1 (fr) | 2015-11-26 |
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