KR20250069919A - 고강도 도금 강판 및 그 제조 방법 - Google Patents

고강도 도금 강판 및 그 제조 방법 Download PDF

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Publication number
KR20250069919A
KR20250069919A KR1020257012442A KR20257012442A KR20250069919A KR 20250069919 A KR20250069919 A KR 20250069919A KR 1020257012442 A KR1020257012442 A KR 1020257012442A KR 20257012442 A KR20257012442 A KR 20257012442A KR 20250069919 A KR20250069919 A KR 20250069919A
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South Korea
Prior art keywords
less
temperature
steel sheet
retained austenite
strength
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KR1020257012442A
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English (en)
Korean (ko)
Inventor
가즈키 엔도
요시야스 가와사키
유키 도지
마사키 다다
가츠토시 다카시마
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제이에프이 스틸 가부시키가이샤
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Priority claimed from PCT/JP2023/031994 external-priority patent/WO2024090032A1/ja
Publication of KR20250069919A publication Critical patent/KR20250069919A/ko
Pending legal-status Critical Current

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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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C21D1/185—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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    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
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    • C21D1/26—Methods of annealing
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    • C21D6/00—Heat treatment of ferrous alloys
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    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
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    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
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    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
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    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys 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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    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0278—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment 
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    • 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
    • C22C38/002—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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    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

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  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61157625A (ja) 1984-12-29 1986-07-17 Nippon Steel Corp 高強度鋼板の製造方法
JP6123966B1 (ja) 2016-09-21 2017-05-10 新日鐵住金株式会社 鋼板
JP6901050B1 (ja) 2019-07-30 2021-07-14 Ｊｆｅスチール株式会社 高強度鋼板およびその製造方法

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KR101999028B1 (ko) * 2017-12-26 2019-09-27 주식회사 포스코 연성이 우수한 열간 프레스 성형 부재, 열간 프레스 성형 부재용 강판 및 이들의 제조방법
KR20210080676A (ko) * 2019-12-20 2021-07-01 현대제철 주식회사 연성 및 성형성이 우수한 고강도 강판
JP7606111B2 (ja) * 2021-01-07 2024-12-25 日本製鉄株式会社 鋼板及びその製造方法
KR20230128081A (ko) * 2021-02-10 2023-09-01 제이에프이 스틸 가부시키가이샤 고강도 강판 및 그 제조 방법
WO2022172540A1 (ja) * 2021-02-10 2022-08-18 Ｊｆｅスチール株式会社 高強度鋼板およびその製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61157625A (ja) 1984-12-29 1986-07-17 Nippon Steel Corp 高強度鋼板の製造方法
JP6123966B1 (ja) 2016-09-21 2017-05-10 新日鐵住金株式会社 鋼板
JP6901050B1 (ja) 2019-07-30 2021-07-14 Ｊｆｅスチール株式会社 高強度鋼板およびその製造方法

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