JP2023507951A - 加工性に優れた高強度鋼板及びその製造方法 - Google Patents

加工性に優れた高強度鋼板及びその製造方法 Download PDF

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Publication number: JP2023507951A
Authority: JP; Japan
Prior art keywords: steel sheet; less; strength; excellent workability; balance
Prior art date: 2019-12-18
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Pending

Application number

JP2022536950A

Other languages

English (en)

Japanese (ja)

Inventor

ジェ－フンイ、

サン－ホハン、

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Posco Holdings Inc

Original Assignee

Posco Co Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2019-12-18

Filing date

2020-11-25

Publication date

2023-02-28

2020-11-25 Application filed by Posco Co Ltd filed Critical Posco Co Ltd

2023-02-28 Publication of JP2023507951A publication Critical patent/JP2023507951A/ja

Status Pending legal-status Critical Current

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229910000831 Steel Inorganic materials 0.000 title claims abstract description 142
239000010959 steel Substances 0.000 title claims abstract description 142
238000004519 manufacturing process Methods 0.000 title claims abstract description 26
238000005452 bending Methods 0.000 claims abstract description 40
229910000734 martensite Inorganic materials 0.000 claims description 85
229910001566 austenite Inorganic materials 0.000 claims description 61
238000010438 heat treatment Methods 0.000 claims description 53
230000000717 retained effect Effects 0.000 claims description 50
229910000859 α-Fe Inorganic materials 0.000 claims description 37
229910001563 bainite Inorganic materials 0.000 claims description 32
229910052782 aluminium Inorganic materials 0.000 claims description 31
238000001816 cooling Methods 0.000 claims description 31
229910052710 silicon Inorganic materials 0.000 claims description 31
238000005098 hot rolling Methods 0.000 claims description 24
238000000137 annealing Methods 0.000 claims description 22
229910052748 manganese Inorganic materials 0.000 claims description 19
238000000034 method Methods 0.000 claims description 19
238000005097 cold rolling Methods 0.000 claims description 17
238000012423 maintenance Methods 0.000 claims description 16
239000012535 impurity Substances 0.000 claims description 13
210000004872 soft tissue Anatomy 0.000 claims description 13
229910052749 magnesium Inorganic materials 0.000 claims description 9
229910052750 molybdenum Inorganic materials 0.000 claims description 9
229910052759 nickel Inorganic materials 0.000 claims description 9
229910052758 niobium Inorganic materials 0.000 claims description 9
229910052757 nitrogen Inorganic materials 0.000 claims description 9
229910052698 phosphorus Inorganic materials 0.000 claims description 9
229910052718 tin Inorganic materials 0.000 claims description 9
229910052735 hafnium Inorganic materials 0.000 claims description 8
229910052717 sulfur Inorganic materials 0.000 claims description 8
238000005096 rolling process Methods 0.000 claims description 6
239000010960 cold rolled steel Substances 0.000 claims description 5
229910052720 vanadium Inorganic materials 0.000 claims description 4
229910052726 zirconium Inorganic materials 0.000 claims description 4
238000004804 winding Methods 0.000 claims description 3
239000011572 manganese Substances 0.000 description 30
PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 19
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 18
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 18
239000010703 silicon Substances 0.000 description 18
230000000694 effects Effects 0.000 description 17
229910052799 carbon Inorganic materials 0.000 description 16
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 15
229910052761 rare earth metal Inorganic materials 0.000 description 15
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 13
239000011575 calcium Substances 0.000 description 13
239000011651 chromium Substances 0.000 description 13
239000010949 copper Substances 0.000 description 13
239000011777 magnesium Substances 0.000 description 13
239000010955 niobium Substances 0.000 description 13
239000000203 mixture Substances 0.000 description 12
239000010936 titanium Substances 0.000 description 12
229910052727 yttrium Inorganic materials 0.000 description 10
VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 10
229910045601 alloy Inorganic materials 0.000 description 9
239000000956 alloy Substances 0.000 description 9
230000007423 decrease Effects 0.000 description 9
238000007747 plating Methods 0.000 description 9
238000005554 pickling Methods 0.000 description 8
230000009466 transformation Effects 0.000 description 8
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
229910052791 calcium Inorganic materials 0.000 description 5
229910052804 chromium Inorganic materials 0.000 description 5
239000010941 cobalt Substances 0.000 description 5
229910017052 cobalt Inorganic materials 0.000 description 5
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 5
229910052802 copper Inorganic materials 0.000 description 5
230000016507 interphase Effects 0.000 description 5
239000011733 molybdenum Substances 0.000 description 5
GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 5
LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 5
ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
229910052787 antimony Inorganic materials 0.000 description 4
WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 4
230000015572 biosynthetic process Effects 0.000 description 4
229910052796 boron Inorganic materials 0.000 description 4
VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 4
239000000463 material Substances 0.000 description 4
VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 4
210000001519 tissue Anatomy 0.000 description 4
229910052719 titanium Inorganic materials 0.000 description 4
WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
229910052721 tungsten Inorganic materials 0.000 description 4
239000010937 tungsten Substances 0.000 description 4
OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
230000007797 corrosion Effects 0.000 description 3
238000005260 corrosion Methods 0.000 description 3
239000011574 phosphorus Substances 0.000 description 3
239000011593 sulfur Substances 0.000 description 3
229910001567 cementite Inorganic materials 0.000 description 2
230000001186 cumulative effect Effects 0.000 description 2
230000007547 defect Effects 0.000 description 2
238000005246 galvanizing Methods 0.000 description 2
KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 2
229910001562 pearlite Inorganic materials 0.000 description 2
230000000704 physical effect Effects 0.000 description 2
239000002244 precipitate Substances 0.000 description 2
238000001556 precipitation Methods 0.000 description 2
238000004080 punching Methods 0.000 description 2
238000005496 tempering Methods 0.000 description 2
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
229910000794 TRIP steel Inorganic materials 0.000 description 1
238000002441 X-ray diffraction Methods 0.000 description 1
239000004480 active ingredient Substances 0.000 description 1
238000005275 alloying Methods 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
239000012141 concentrate Substances 0.000 description 1
239000000470 constituent Substances 0.000 description 1
238000009749 continuous casting Methods 0.000 description 1
239000013078 crystal Substances 0.000 description 1
238000000354 decomposition reaction Methods 0.000 description 1
230000006866 deterioration Effects 0.000 description 1
238000005530 etching Methods 0.000 description 1
238000011156 evaluation Methods 0.000 description 1
238000010304 firing Methods 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
238000007373 indentation Methods 0.000 description 1
FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical group [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
238000002844 melting Methods 0.000 description 1
230000008018 melting Effects 0.000 description 1
150000004767 nitrides Chemical class 0.000 description 1
230000006911 nucleation Effects 0.000 description 1
238000010899 nucleation Methods 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
230000035515 penetration Effects 0.000 description 1
235000019362 perlite Nutrition 0.000 description 1
239000010451 perlite Substances 0.000 description 1
229910001568 polygonal ferrite Inorganic materials 0.000 description 1
239000002994 raw material Substances 0.000 description 1
229910052706 scandium Inorganic materials 0.000 description 1
SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
238000005245 sintering Methods 0.000 description 1
239000006104 solid solution Substances 0.000 description 1
238000005482 strain hardening Methods 0.000 description 1
238000005728 strengthening Methods 0.000 description 1
238000009864 tensile test Methods 0.000 description 1
150000003568 thioethers Chemical class 0.000 description 1
239000013585 weight reducing agent Substances 0.000 description 1

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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
- 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
- C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
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- 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
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- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
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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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- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
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- 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
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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- C21D2211/00—Microstructure comprising significant phases
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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
- C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
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- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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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
- 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
- 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
- C22C38/60—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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Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2010275627A (ja) *	2009-04-27	2010-12-09	Jfe Steel Corp	加工性に優れた高強度鋼板および高強度溶融亜鉛めっき鋼板並びにそれらの製造方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100268853B1 (ko) *	1996-12-23	2000-10-16	이구택	열연판의 산세성과 자성이 우수한무방향성 전기강판의 제조방법
JP4510488B2 (ja)	2004-03-11	2010-07-21	新日本製鐵株式会社	成形性および穴拡げ性に優れた溶融亜鉛めっき複合高強度鋼板およびその製造方法
JP4901617B2 (ja)	2007-07-13	2012-03-21	新日本製鐵株式会社	引張強度が７００ＭＰａ以上で耐食性、穴拡げ性および延性に優れた合金化溶融亜鉛めっき高強度鋼板及びその製造方法
EP2617849B1 (en) *	2010-09-16	2017-01-18	Nippon Steel & Sumitomo Metal Corporation	High-strength cold-rolled steel sheet with excellent ductility and stretch flangeability, high-strength galvanized steel sheet, and method for producing both
UA112771C2 (uk)	2011-05-10	2016-10-25	Арселормітталь Інвестігасьон І Десароло Сл	Сталевий лист з високою механічною міцністю, пластичністю і формованістю, спосіб виготовлення та застосування таких листів
JP5862051B2 (ja) *	2011-05-12	2016-02-16	Ｊｆｅスチール株式会社	加工性に優れる高強度冷延鋼板ならびにその製造方法
US9745639B2 (en) *	2011-06-13	2017-08-29	Kobe Steel, Ltd.	High-strength steel sheet excellent in workability and cold brittleness resistance, and manufacturing method thereof
JP5648597B2 (ja) *	2011-07-06	2015-01-07	新日鐵住金株式会社	冷延鋼板の製造方法
JP6306481B2 (ja) *	2014-03-17	2018-04-04	株式会社神戸製鋼所	延性及び曲げ性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、並びにそれらの製造方法
KR101594670B1 (ko) *	2014-05-13	2016-02-17	주식회사 포스코	연성이 우수한 고강도 냉연강판, 용융아연도금강판 및 이들의 제조방법
JP6554397B2 (ja) *	2015-03-31	2019-07-31	株式会社神戸製鋼所	加工性および衝突特性に優れた引張強度が９８０ＭＰａ以上の高強度冷延鋼板、およびその製造方法
JP6620474B2 (ja) *	2015-09-09	2019-12-18	日本製鉄株式会社	溶融亜鉛めっき鋼板および合金化溶融亜鉛めっき鋼板、並びにそれらの製造方法
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
JP6762868B2 (ja) *	2016-03-31	2020-09-30	株式会社神戸製鋼所	高強度鋼板およびその製造方法
KR102221391B1 (ko) *	2016-09-21	2021-03-02	닛폰세이테츠 가부시키가이샤	강판
CN110312813B (zh) *	2017-02-13	2021-07-20	杰富意钢铁株式会社	高强度钢板及其制造方法
JP6849536B2 (ja) *	2017-05-31	2021-03-24	株式会社神戸製鋼所	高強度鋼板およびその製造方法

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Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2010275627A (ja) *	2009-04-27	2010-12-09	Jfe Steel Corp	加工性に優れた高強度鋼板および高強度溶融亜鉛めっき鋼板並びにそれらの製造方法

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