JP6193219B2 - 高強度鋼板製品及びその製造方法 - Google Patents
高強度鋼板製品及びその製造方法 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims description 141
- 239000010959 steel Substances 0.000 title claims description 141
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229910000734 martensite Inorganic materials 0.000 claims description 65
- 238000001816 cooling Methods 0.000 claims description 64
- 238000010438 heat treatment Methods 0.000 claims description 61
- 238000000034 method Methods 0.000 claims description 56
- 238000009826 distribution Methods 0.000 claims description 47
- 229910001566 austenite Inorganic materials 0.000 claims description 33
- 238000009792 diffusion process Methods 0.000 claims description 27
- 238000000576 coating method Methods 0.000 claims description 23
- 229910052758 niobium Inorganic materials 0.000 claims description 23
- 229910052719 titanium Inorganic materials 0.000 claims description 23
- 229910052720 vanadium Inorganic materials 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 21
- 229910001563 bainite Inorganic materials 0.000 claims description 19
- 229910052799 carbon Inorganic materials 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 239000011241 protective layer Substances 0.000 claims description 14
- 229910000859 α-Fe Inorganic materials 0.000 claims description 12
- 229910052796 boron Inorganic materials 0.000 claims description 10
- 230000014759 maintenance of location Effects 0.000 claims description 10
- 229910052791 calcium Inorganic materials 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 229910001567 cementite Inorganic materials 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 4
- 239000000047 product Substances 0.000 description 88
- 230000000717 retained effect Effects 0.000 description 19
- 230000015572 biosynthetic process Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 14
- 238000005452 bending Methods 0.000 description 13
- 239000011651 chromium Substances 0.000 description 11
- 239000011572 manganese Substances 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000011575 calcium Substances 0.000 description 7
- 229910052748 manganese Inorganic materials 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000002411 adverse Effects 0.000 description 5
- 238000010791 quenching Methods 0.000 description 5
- 230000000171 quenching effect Effects 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000000265 homogenisation Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 230000008092 positive effect Effects 0.000 description 4
- 238000005496 tempering Methods 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 3
- 150000001247 metal acetylides Chemical class 0.000 description 3
- 229910001562 pearlite Inorganic materials 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000013519 translation Methods 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
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/78—Combined heat-treatments not provided for above
-
- 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
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
-
- 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
- C21D8/04—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
-
- 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
-
- 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
- C22C38/02—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
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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
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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
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- 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
- C22C38/34—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
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
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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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0224—Two or more thermal pretreatments
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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
- C21D2211/008—Martensite
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12785—Group IIB metal-base component
- Y10T428/12792—Zn-base component
- Y10T428/12799—Next to Fe-base component [e.g., galvanized]
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Heat Treatment Of Sheet Steel (AREA)
- Coating With Molten Metal (AREA)
- Heat Treatment Of Steel (AREA)
Description
−スラブからの熱間圧延ストリップを熱間圧延する工程、
−この熱間圧延ストリップを冷間圧延して冷間圧延ストリップにする工程、
−この冷間圧延ストリップを熱処理する工程(この熱処理の過程で、
−冷間圧延ストリップは、この冷間圧延ストリップが構成されている鋼のAc3温度より50℃低い温度から最大2℃/秒の平均速度でそれぞれのAc3温度に加熱され、
−次に冷間圧延ストリップは、少なくともそれぞれのAc3温度に相当する温度で少なくとも10秒間保持され、
−この時間後すぐに冷間圧延ストリップは、それぞれの製鋼プロセスのマルテンサイト開始温度より100〜200℃低い温度に最小20℃/秒の平均速度で冷却され、かつ
−最後に冷間圧延ストリップは300〜600℃の温度に1〜600秒間加熱される)
を具備する方法を開示している。
−600〜1400MPaの降伏強度Rp0.2、
−0.40〜0.95の降伏強度対引張強度比Rp/Rm、
−10〜30%の伸びA50、
−15000〜35000MPa*%の引張強度Rmと伸びA50の積Rm *A50、
−穴拡げ率λ:50〜120%
(λ=(df−d0)/d0[%]、式中、df=拡げ後の穴径、d0=拡げ前の穴径)及び
−100°〜180°の許容曲げ角度αの範囲(マンドレル半径=2×シート厚でスプリングバック後)(DIN EN 7438に従って測定可能)。
未被覆鋼板製品、すなわち既に上述した鋼板製品と同じ鋼から製造された、保護層をまだ持っていない鋼板製品を準備する。従って、この鋼板製品は、鉄と不可避不純物に加えて(重量%で)C:0.10〜0.50%、Si:0.1〜2.5%、Mn:1.0〜3.5%、Al:2.5%まで、P:0.020%まで、S:0.003%まで、N:0.02%まで、並びに任意に下記量:Cr:0.1〜0.5%、Mo:0.1〜0.3%、V:0.01〜0.1%、Ti:0.001〜0.15%、Nb:0.02〜0.05%、ここで、V、Ti及びNbの量の合計Σ(V、Ti、Nb)についてはΣ(V、Ti、Nb)≦0.2%であり、B:0.0005〜0.005%、及びCa:0.01%までの元素「Cr、Mo、V、Ti、Nb、B及びCa」の1種以上を含む鋼から成る。準備される鋼板製品は特に冷間圧延鋼板製品であり得る。しかしながら、一発明方法では熱間圧延鋼板製品の加工も考えられる。
a)95%のマルテンサイト比率が達成された場合にマルテンサイト変換が完了したとみなす。
b)組成依存定数αは−0.011である。
c)マルテンサイト停止温度は冷却停止温度と同じである。
Tw オーステナイト化前の第1から第2加熱期への変化の温度 (℃)
θH2 オーステナイト化前の第2加熱期の加熱速度 (℃/秒)
THz オーステナイト化温度 (℃)
tHz オーステナイト化時間 (秒)
θQ オーステナイト化後の焼入れの冷却速度 (℃/秒)
θQ(最小) フェライト又はベイナイト変換を避けるための最小冷却速度 (℃/秒)
TQ オーステナイト化後の焼入れの冷却停止温度 (℃)
tQ 冷却停止温度での保持時間 (秒)
θP1 等温分配の温度までの加熱速度 (℃/秒)
tA 分配温度TPまでの加熱時間 (秒)
tPR 加熱中の分配時間(傾斜分配) (秒)
tPI 等温分配の保持時間 (秒)
tPT 総分配時間(tPR+tPI) (秒)
TP 等温分配の温度 (℃)
xD 総拡散距離 (μm)
xDr 傾斜分配からの拡散距離 (μm)
xDi 等温分配からの拡散距離 (μm)
θP2 分配後の冷却速度 (℃/秒)
F フェライト (%)
B ベイナイト (%)
MT 焼戻しマルテンサイト(旧マルテンサイト) (%)
MN 分配後の冷却からのマルテンサイト(新マルテンサイト) (%)
RA 残留オーステナイト (%)
Rp0.2 降伏強度 (MPa)
Rm 引張強度 (MPa)
Rp0.2/Rm 降伏強度対引張強度比 (−)
A50 伸び (%)
Rm *A50 引張強度と伸びの積(=高強度と同時の良い成形性の尺度) (MPa*%)
λ 穴拡げ率 (%)
α 曲げ角度(マンドレル半径=2×シート厚についてスプリングバック後) (°)
Claims (15)
- 少なくとも1200MPaの引張強度Rmを有し、かつFeと不可避不純物に加えて
(重量%で)
C:0.10〜0.50%、
Si:0.1〜2.5%未満、
Mn:1.0〜3.5%、
Al:2.5%まで、
P:0.020%未満、
S:0.003%未満、
N:0.02%未満、
並びに任意に下記量:
Cr:0.1〜0.5%、
Mo:0.1〜0.3%、
V:0.01〜0.1%、
Ti:0.001〜0.15%、
Nb:0.02〜0.05%、
ここで、V、Ti及びNbの量の合計Σ(V、Ti、Nb)についてはΣ(V、Ti、Nb)≦0.2%であり、
B:0.0005〜0.005%、
Ca:0.01%まで
の元素「Cr、Mo、V、Ti、Nb、B及びCa」の1種以上を含む
鋼から成り、かつ
(表面パーセントで)5%未満のフェライト、10%未満のベイナイト、5〜70%の焼戻しをしていないマルテンサイト、5〜30%の残留オーステナイト及び23〜80%の焼戻しマルテンサイトを含むミクロ構造を有し、前記焼戻しマルテンサイトに含まれる炭化鉄の少なくとも99%が500nm未満のサイズを有する、鋼板製品。 - (重量%で)Al含量が0.01〜1.5%であるか、Cr含量が0.20〜0.35%であるか、V含量が0.04〜0.08%であるか、Ti含量が0.008〜0.14%であるか、B含量が0.002〜0.004%であるか又はCa含量が0.0001〜0.006%であることを特徴とする請求項1に記載の鋼板製品。
- その鋼の炭素当量CEについて
0.35重量%≦CE≦1.2重量%
但し、
- 前記炭素当量CEについて
0.5重量%≦CE≦1.0重量%
が有効であることを特徴とする請求項3に記載の鋼板製品。 - 溶融コーティングされた金属保護層を備えていることを特徴とする請求項1〜4のいずれか1項に記載の鋼板製品。
- 請求項1〜4のいずれか1項に記載の高強度鋼板製品の製造方法であって、下記作業工程:
−Feと不可避不純物に加えて(重量%で)
C:0.10〜0.50%、
Si:0.1〜2.5%未満、
Mn:1.0〜3.5%、
Al:2.5%まで、
P:0.020%未満、
S:0.003%未満、
N:0.02%未満、
並びに任意に下記量:
Cr:0.1〜0.5%、
Mo:0.1〜0.3%、
V:0.01〜0.1%、
Ti:0.001〜0.15%、
Nb:0.02〜0.05%、
ここで、V、Ti及びNbの量の合計Σ(V、Ti、Nb)についてはΣ(V、Ti、Nb)≦0.2%であり、
B:0.0005〜0.005%、
Ca:0.01%まで
の元素「Cr、Mo、V、Ti、Nb、B及びCa」の1種以上を含む
鋼の未被覆鋼板製品を準備する工程;
−前記鋼板製品の鋼のAc3温度より高く、最大960℃のオーステナイト化温度THZまで、少なくとも3℃/秒の加熱速度で前記鋼板製品を加熱する工程;
−前記鋼板製品を20〜180秒のオーステナイト化時間tHZ前記オーステナイト化温度THZで保持する工程;
−マルテンサイト停止温度TMfより高く、マルテンサイト開始温度TMs未満の冷却停止温度TQまで(TMf<TQ<TMs)、
θQ≦θQ(最小)
但し、
−前記鋼板製品を10〜60秒の保持時間tQ前記冷却停止温度TQで保持する工程;
−前記冷却停止温度TQから開始して、2〜80℃/秒の加熱速度θP1で前記鋼板製品を400〜500℃の分配温度TPまで加熱する工程;
−必要に応じて前記鋼板製品を500秒までの保持時間tPi等温的に分配温度TPで保持する工程;
−前記分配温度TPから開始して、−3℃/秒〜−25℃/秒の冷却速度θP2で前記鋼板製品を冷却する工程であって、
拡散距離x D について
1.0μm≦x D ≦5.6μm
(但し、 x D =x Di +x Dr
x Di :下記式に従って計算され、等温保持の過程で得られる、拡散距離x D への寄与
x Dr :下記式に従って計算され、分配温度までの加熱の過程で得られる、拡散距離x D への寄与
であることを具備する方法。 - 請求項1〜5のいずれか1項に記載の高強度鋼板製品の製造方法であって、前記分配温度TPから開始して前記冷却速度θP2で冷却する工程において、
−前記鋼板製品を最初に400℃以上500℃未満の溶融浴入口温度TBに冷却し;
−この溶融浴入口温度TBに冷却された鋼板製品を次に溶融浴に通すことによって溶融コーティングし、前記鋼板製品上に生成された保護層の厚さを整え、
−最後に前記溶融浴を出る、前記保護層を備えた鋼板製品を前記冷却速度θP2で周囲温度に冷却することを特徴とする請求項6に記載の方法。 - 前記オーステナイト化温度THZまでの加熱工程が、2つの逐次段階で中断せずに異なる加熱速度θH1、θH2で行なわれることを特徴とする請求項6又は7に記載の方法。
- 第1段階の前記加熱速度θH1が5〜25℃/秒であり、第2段階の前記加熱速度θH2が3〜10℃/秒であることを特徴とする請求項8に記載の方法。
- 前記鋼板製品を第1加熱速度θH1で200〜500℃の中間温度まで加熱してから、第2加熱速度θH2で前記オーステナイト化温度THZまで加熱を続けることを特徴とする請求項9に記載の方法。
- 前記冷却速度θQが−20℃/秒〜−120℃/秒であることを特徴とする請求項6〜10のいずれか1項に記載の方法。
- 前記冷却停止温度TQが少なくとも200℃であることを特徴とする請求項6〜11のいずれか1項に記載の方法。
- 前記鋼板製品を前記冷却停止温度TQで保持する保持時間tQが12〜40秒であることを特徴とする請求項6〜12のいずれか1項に記載の方法。
- 前記冷却停止温度TQから加熱が行なわれる加熱速度θP1が2〜40℃/秒であることを特徴とする請求項6〜13のいずれか1項に記載の方法。
- 前記分配温度TPまでの加熱工程が1〜150秒の加熱時間tA内に行なわれることを特徴とする請求項6〜14のいずれか1項に記載の方法。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019527771A (ja) * | 2016-07-27 | 2019-10-03 | 宝山鋼鉄股▲分▼有限公司 | 1500MPaレベル高強伸度積自動車用鋼及びその製造方法 |
Families Citing this family (85)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5252348B2 (ja) * | 2006-03-20 | 2013-07-31 | 独立行政法人物質・材料研究機構 | Ni基超合金とその製造方法およびタービンブレードまたはタービンベーン部品 |
EP2524970A1 (de) | 2011-05-18 | 2012-11-21 | ThyssenKrupp Steel Europe AG | Hochfestes Stahlflachprodukt und Verfahren zu dessen Herstellung |
FI20115702L (fi) | 2011-07-01 | 2013-01-02 | Rautaruukki Oyj | Menetelmä suurlujuuksisen rakenneteräksen valmistamiseksi ja suurlujuuksinen rakenneteräs |
CN103060715B (zh) | 2013-01-22 | 2015-08-26 | 宝山钢铁股份有限公司 | 一种具有低屈服比的超高强韧钢板及其制造方法 |
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 |
CN103160680A (zh) * | 2013-04-03 | 2013-06-19 | 北京科技大学 | 一种制备30GPa%级复相钢的Q&PB热处理工艺 |
CN113151735A (zh) | 2013-05-17 | 2021-07-23 | 克利夫兰-克利夫斯钢铁资产公司 | 表现出良好延展性的高强度钢以及通过镀锌槽进行淬火和分配处理的制备方法 |
US9869009B2 (en) * | 2013-11-15 | 2018-01-16 | Gregory Vartanov | High strength low alloy steel and method of manufacturing |
EP3097214B1 (en) * | 2014-01-24 | 2021-02-24 | Rautaruukki Oyj | Hot-rolled ultrahigh strength steel strip product |
EP2905348B1 (de) | 2014-02-07 | 2019-09-04 | ThyssenKrupp Steel Europe AG | Hochfestes Stahlflachprodukt mit bainitisch-martensitischem Gefüge und Verfahren zur Herstellung eines solchen Stahlflachprodukts |
US10435762B2 (en) | 2014-03-31 | 2019-10-08 | Jfe Steel Corporation | High-yield-ratio high-strength cold-rolled steel sheet and method of producing the same |
WO2015177582A1 (fr) * | 2014-05-20 | 2015-11-26 | Arcelormittal Investigación Y Desarrollo Sl | Tôle d'acier doublement recuite à hautes caractéristiques mécaniques de résistance et ductilité, procédé de fabrication et utilisation de telles tôles |
CN105132814B (zh) * | 2014-06-09 | 2018-02-27 | 鞍钢股份有限公司 | 一种耙片用带钢及生产方法与耙片热处理方法 |
WO2016001706A1 (en) * | 2014-07-03 | 2016-01-07 | Arcelormittal | Method for producing a high strength steel sheet having improved strength and formability and obtained sheet |
WO2016001702A1 (en) | 2014-07-03 | 2016-01-07 | Arcelormittal | Method for producing a high strength coated steel sheet having improved strength, ductility and formability |
WO2016001700A1 (en) * | 2014-07-03 | 2016-01-07 | Arcelormittal | Method for producing a high strength steel sheet having improved strength, ductility and formability |
HUE044411T2 (hu) | 2014-07-03 | 2019-10-28 | Arcelormittal | Eljárás ultranagyszilárdságú, bevont vagy bevonat nélküli acéllemez elõállítására, és az eljárással elõállított lemez |
WO2016001708A1 (en) * | 2014-07-03 | 2016-01-07 | Arcelormittal | Method for producing a high strength coated steel sheet having improved strength, formability and obtained sheet |
WO2016001710A1 (en) * | 2014-07-03 | 2016-01-07 | Arcelormittal | Method for producing a high strength coated steel having improved strength and ductility and obtained sheet |
WO2016001704A1 (en) | 2014-07-03 | 2016-01-07 | Arcelormittal | Method for manufacturing a high strength steel sheet and sheet obtained |
ES2860953T3 (es) * | 2014-07-08 | 2021-10-05 | Sidenor Investig Y Desarrollo S A | Acero microaleado para conformado en caliente de piezas de alta resistencia y alto límite elástico |
WO2016016683A1 (en) * | 2014-07-30 | 2016-02-04 | Arcelormittal | A method for producing a high strength steel piece |
DE102014114365A1 (de) * | 2014-10-02 | 2016-04-07 | Thyssenkrupp Steel Europe Ag | Mehrschichtiges Stahlflachprodukt und daraus hergestelltes Bauteil |
WO2016079565A1 (en) * | 2014-11-18 | 2016-05-26 | Arcelormittal | Method for manufacturing a high strength steel product and steel product thereby obtained |
DE102014017274A1 (de) * | 2014-11-18 | 2016-05-19 | Salzgitter Flachstahl Gmbh | Höchstfester lufthärtender Mehrphasenstahl mit hervorragenden Verarbeitungseigenschaften und Verfahren zur Herstellung eines Bandes aus diesem Stahl |
DE102014017275A1 (de) * | 2014-11-18 | 2016-05-19 | Salzgitter Flachstahl Gmbh | Hochfester lufthärtender Mehrphasenstahl mit hervorragenden Verarbeitungseigenschaften und Verfahren zur Herstellung eines Bandes aus diesem Stahl |
DE102014017273A1 (de) * | 2014-11-18 | 2016-05-19 | Salzgitter Flachstahl Gmbh | Hochfester lufthärtender Mehrphasenstahl mit hervorragenden Verarbeitungseigenschaften und Verfahren zur Herstellung eines Bandes aus diesem Stahl |
DE102015119417B4 (de) * | 2014-11-26 | 2017-10-19 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Verfahren zum presshärten einer galvanisierten stahllegierung |
KR102000854B1 (ko) | 2014-12-12 | 2019-07-16 | 제이에프이 스틸 가부시키가이샤 | 고강도 냉연 강판 및 그 제조방법 |
JP2016153524A (ja) * | 2015-02-13 | 2016-08-25 | 株式会社神戸製鋼所 | 切断端部での耐遅れ破壊特性に優れた超高強度鋼板 |
MX2017012873A (es) | 2015-04-08 | 2018-01-15 | Nippon Steel & Sumitomo Metal Corp | Miembro de lamina de acero con tratamiento termico y metodo para producirlo. |
BR112017020004A2 (ja) | 2015-04-08 | 2018-06-19 | Nippon Steel & Sumitomo Metal Corporation | The steel plate for heat treatment |
WO2016177420A1 (de) * | 2015-05-06 | 2016-11-10 | Thyssenkrupp Steel Europe Ag | Stahlflachprodukt und verfahren zu seiner herstellung |
CN104831180B (zh) * | 2015-05-15 | 2016-09-28 | 东北大学 | 一种深海用海洋软管铠装层用钢及其制备方法 |
CN104928590B (zh) * | 2015-06-11 | 2017-05-03 | 北京交通大学 | 一种Mn‑Si‑Cr低碳贝氏体钢、钎杆及其制备方法 |
DE102015111177A1 (de) * | 2015-07-10 | 2017-01-12 | Salzgitter Flachstahl Gmbh | Höchstfester Mehrphasenstahl und Verfahren zur Herstellung eines kaltgewalzten Stahlbandes hieraus |
US10597746B2 (en) | 2015-07-24 | 2020-03-24 | Thyssenkrupp Steel Europe Ag | High-strength steel having a high minimum yield limit and method for producing a steel of this type |
DE102015119839A1 (de) * | 2015-11-17 | 2017-05-18 | Benteler Steel/Tube Gmbh | Stahllegierung mit hohem Energieaufnahmevermögen und Stahlrohrprodukt |
CN108474080B (zh) | 2015-11-16 | 2021-09-21 | 本特勒尔钢管有限公司 | 具有高能量吸收能力的钢合金和钢管产品 |
EP3390040B2 (en) | 2015-12-15 | 2023-08-30 | Tata Steel IJmuiden B.V. | High strength hot dip galvanised steel strip |
WO2017109542A1 (en) * | 2015-12-21 | 2017-06-29 | Arcelormittal | Method for producing a high strength steel sheet having improved ductility and formability, and obtained steel sheet |
WO2017109539A1 (en) | 2015-12-21 | 2017-06-29 | Arcelormittal | Method for producing a high strength steel sheet having improved strength and formability, and obtained high strength steel sheet |
SE539519C2 (en) | 2015-12-21 | 2017-10-03 | High strength galvannealed steel sheet and method of producing such steel sheet | |
KR101714930B1 (ko) * | 2015-12-23 | 2017-03-10 | 주식회사 포스코 | 구멍확장성이 우수한 초고강도 강판 및 그 제조방법 |
CN108431247B (zh) | 2015-12-29 | 2019-10-01 | 安赛乐米塔尔公司 | 用于生产超高强度镀锌扩散退火钢板的方法和获得的镀锌扩散退火钢板 |
US11473180B2 (en) * | 2016-01-27 | 2022-10-18 | Jfe Steel Corporation | High-yield-ratio high-strength galvanized steel sheet and method for manufacturing the same |
US10385415B2 (en) | 2016-04-28 | 2019-08-20 | GM Global Technology Operations LLC | Zinc-coated hot formed high strength steel part with through-thickness gradient microstructure |
US10619223B2 (en) | 2016-04-28 | 2020-04-14 | GM Global Technology Operations LLC | Zinc-coated hot formed steel component with tailored property |
US11186889B2 (en) * | 2016-08-10 | 2021-11-30 | Jfe Steel Corporation | High-strength steel sheet and manufacturing method therefor |
KR101830538B1 (ko) * | 2016-11-07 | 2018-02-21 | 주식회사 포스코 | 항복비가 우수한 초고강도 강판 및 그 제조방법 |
KR102477323B1 (ko) | 2016-11-29 | 2022-12-13 | 타타 스틸 이즈무이덴 베.뷔. | 열간 성형 물품 제조 방법 및 획득 물품 |
KR102478025B1 (ko) * | 2016-12-14 | 2022-12-15 | 티센크루프 스틸 유럽 악티엔게젤샤프트 | 열간 압연 평탄형 강 제품 및 그 제조 방법 |
KR101917472B1 (ko) * | 2016-12-23 | 2018-11-09 | 주식회사 포스코 | 항복비가 낮고 균일연신율이 우수한 템퍼드 마르텐사이트 강 및 그 제조방법 |
US10260121B2 (en) | 2017-02-07 | 2019-04-16 | GM Global Technology Operations LLC | Increasing steel impact toughness |
CN109280861A (zh) * | 2017-07-21 | 2019-01-29 | 蒂森克虏伯钢铁欧洲股份公司 | 具有良好耐老化性的扁钢产品及其生产方法 |
CN110944765B (zh) * | 2017-07-25 | 2022-02-25 | 蒂森克虏伯钢铁欧洲股份公司 | 通过热成型扁钢产品生产的金属板构件及其生产方法 |
WO2019037838A1 (de) * | 2017-08-22 | 2019-02-28 | Thyssenkrupp Steel Europe Ag | VERWENDUNG EINES Q&P-STAHLS ZUR HERSTELLUNG EINER GEFORMTEN KOMPONENTE FÜR VERSCHLEIßANWENDUNGEN |
EP3688203B1 (de) * | 2017-09-28 | 2022-04-27 | ThyssenKrupp Steel Europe AG | Stahlflachprodukt und verfahren zu seiner herstellung |
CN107904488B (zh) * | 2017-11-06 | 2020-02-07 | 江阴兴澄特种钢铁有限公司 | 一种特厚高强高韧抗层状撕裂q550钢板及其制造方法 |
WO2019111029A1 (en) | 2017-12-05 | 2019-06-13 | Arcelormittal | Cold rolled and annealed steel sheet and method of manufacturing the same |
DE102017130237A1 (de) | 2017-12-15 | 2019-06-19 | Salzgitter Flachstahl Gmbh | Hochfestes, warmgewalztes Stahlflachprodukt mit hohem Kantenrisswiderstand und gleichzeitig hohem Bake-Hardening Potential, ein Verfahren zur Herstellung eines solchen Stahlflachprodukts |
EP3511430A1 (de) * | 2018-01-12 | 2019-07-17 | SMS Group GmbH | Verfahren für eine kontinuierliche wärmebehandlung eines stahlbands, und anlage zum schmelztauchbeschichten eines stahlbands |
US11530463B2 (en) | 2018-03-30 | 2022-12-20 | Jfe Steel Corporation | High-strength galvanized steel sheet, high strength member, and method for manufacturing the same |
DE102018207888A1 (de) * | 2018-05-18 | 2019-11-21 | Volkswagen Aktiengesellschaft | Stahlmaterial und Verfahren zur Herstellung eines Stahlmaterials |
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US11613789B2 (en) | 2018-05-24 | 2023-03-28 | GM Global Technology Operations LLC | Method for improving both strength and ductility of a press-hardening steel |
EP3807429A1 (de) | 2018-06-12 | 2021-04-21 | ThyssenKrupp Steel Europe AG | Stahlflachprodukt und verfahren zu seiner herstellung |
US11612926B2 (en) | 2018-06-19 | 2023-03-28 | GM Global Technology Operations LLC | Low density press-hardening steel having enhanced mechanical properties |
ES2927204T3 (es) * | 2018-09-26 | 2022-11-03 | Thyssenkrupp Steel Europe Ag | Procedimiento para la fabricación de un producto plano de acero recubierto y producto plano de acero recubierto |
WO2020128574A1 (en) * | 2018-12-18 | 2020-06-25 | Arcelormittal | Cold rolled and heat-treated steel sheet and method of manufacturing the same |
CN109868412A (zh) * | 2019-02-18 | 2019-06-11 | 山东钢铁股份有限公司 | 一种焊前免预热大厚度低碳当量500MPa级高强钢及其制造方法 |
DE102019202343A1 (de) | 2019-02-21 | 2020-08-27 | Thyssenkrupp Steel Europe Ag | Verfahren zum Herstellen eines Bauteils mittels Innenhochdruckumformen |
WO2020221889A1 (en) * | 2019-04-30 | 2020-11-05 | Tata Steel Nederland Technology B.V. | A high strength steel product and a process to produce a high strength steel product |
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US11530469B2 (en) | 2019-07-02 | 2022-12-20 | GM Global Technology Operations LLC | Press hardened steel with surface layered homogenous oxide after hot forming |
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WO2023233036A1 (en) * | 2022-06-03 | 2023-12-07 | Thyssenkrupp Steel Europe Ag | High strength, cold rolled steel with reduced sensitivity to hydrogen embrittlement and method for the manufacture thereof |
WO2023246899A1 (zh) * | 2022-06-22 | 2023-12-28 | 宝山钢铁股份有限公司 | 高扩孔钢及其制造方法 |
CN115341142B (zh) * | 2022-08-04 | 2023-06-02 | 钢铁研究总院有限公司 | 一种温成型用钢及其制备方法 |
DE102022125128A1 (de) | 2022-09-29 | 2024-04-04 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung eines Stahlbandes aus einem hochfesten Mehrphasenstahl und entsprechendes Stahlband |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0693340A (ja) * | 1992-09-14 | 1994-04-05 | Kobe Steel Ltd | 伸びフランジ性の優れた高強度合金化溶融亜鉛めっき鋼板の製造方法及び製造設備 |
US6395108B2 (en) * | 1998-07-08 | 2002-05-28 | Recherche Et Developpement Du Groupe Cockerill Sambre | Flat product, such as sheet, made of steel having a high yield strength and exhibiting good ductility and process for manufacturing this product |
AU2003270334A1 (en) * | 2002-09-04 | 2004-03-29 | Colorado School Of Mines | Method for producing steel with retained austenite |
JP5365216B2 (ja) | 2008-01-31 | 2013-12-11 | Jfeスチール株式会社 | 高強度鋼板とその製造方法 |
JP5402007B2 (ja) | 2008-02-08 | 2014-01-29 | Jfeスチール株式会社 | 加工性に優れた高強度溶融亜鉛めっき鋼板およびその製造方法 |
JP4324225B1 (ja) | 2008-03-07 | 2009-09-02 | 株式会社神戸製鋼所 | 伸びフランジ性に優れた高強度冷延鋼板 |
JP5418047B2 (ja) | 2008-09-10 | 2014-02-19 | Jfeスチール株式会社 | 高強度鋼板およびその製造方法 |
JP5400484B2 (ja) | 2009-06-09 | 2014-01-29 | 株式会社神戸製鋼所 | 伸び、伸びフランジ性および溶接性を兼備した高強度冷延鋼板 |
JP5333298B2 (ja) | 2010-03-09 | 2013-11-06 | Jfeスチール株式会社 | 高強度鋼板の製造方法 |
EP2524970A1 (de) | 2011-05-18 | 2012-11-21 | ThyssenKrupp Steel Europe AG | Hochfestes Stahlflachprodukt und Verfahren zu dessen Herstellung |
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- 2012-05-16 ES ES12721842.8T patent/ES2628409T3/es active Active
- 2012-05-16 US US14/117,711 patent/US9650708B2/en active Active
- 2012-05-16 PL PL12721842T patent/PL2710158T3/pl unknown
- 2012-05-16 CN CN201280024105.XA patent/CN103597100B/zh active Active
- 2012-05-16 JP JP2014510785A patent/JP6193219B2/ja active Active
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019527771A (ja) * | 2016-07-27 | 2019-10-03 | 宝山鋼鉄股▲分▼有限公司 | 1500MPaレベル高強伸度積自動車用鋼及びその製造方法 |
US11047027B2 (en) | 2016-07-27 | 2021-06-29 | Baoshan Iron & Steel Co., Ltd. | 1500 MPA-grade steel with high product of strength and elongation for vehicles and manufacturing methods therefor |
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US20140322559A1 (en) | 2014-10-30 |
US9650708B2 (en) | 2017-05-16 |
JP2014518945A (ja) | 2014-08-07 |
EP2710158A1 (de) | 2014-03-26 |
CN103597100B (zh) | 2016-01-27 |
CN103597100A (zh) | 2014-02-19 |
ES2628409T3 (es) | 2017-08-02 |
KR20140024903A (ko) | 2014-03-03 |
WO2012156428A1 (de) | 2012-11-22 |
KR102001648B1 (ko) | 2019-10-01 |
PL2710158T3 (pl) | 2017-09-29 |
EP2524970A1 (de) | 2012-11-21 |
EP2710158B1 (de) | 2017-03-15 |
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