WO2020111874A3 - 용접열영향부 인성이 우수한 강재 및 이의 제조방법 - Google Patents

용접열영향부 인성이 우수한 강재 및 이의 제조방법 Download PDF

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Publication number
WO2020111874A3
WO2020111874A3 PCT/KR2019/016740 KR2019016740W WO2020111874A3 WO 2020111874 A3 WO2020111874 A3 WO 2020111874A3 KR 2019016740 W KR2019016740 W KR 2019016740W WO 2020111874 A3 WO2020111874 A3 WO 2020111874A3
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WO
WIPO (PCT)
Prior art keywords
steel plate
manufacturing
affected zone
heat affected
excellent heat
Prior art date
Application number
PCT/KR2019/016740
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English (en)
French (fr)
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WO2020111874A2 (ko
Inventor
소태일
강상덕
Original Assignee
주식회사 포스코
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Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to CN201980076999.9A priority Critical patent/CN113166884A/zh
Priority to CA3121217A priority patent/CA3121217C/en
Priority to US17/298,881 priority patent/US20220127704A1/en
Priority to EP19889074.1A priority patent/EP3889293A4/en
Priority to JP2021530177A priority patent/JP7236540B2/ja
Publication of WO2020111874A2 publication Critical patent/WO2020111874A2/ko
Publication of WO2020111874A3 publication Critical patent/WO2020111874A3/ko

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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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • 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
    • C21D6/001—Heat treatment of ferrous alloys containing Ni
    • 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
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot 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
    • C21D8/0247—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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • 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
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • 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
    • C21D2211/001—Austenite
    • 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
    • C21D2211/002—Bainite
    • 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
    • C21D2211/005—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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

본 발명은 구조용 등의 소재로서 적합하게 사용할 수 있는 강재에 관한 것으로, 대입열 용접을 행하더라도 용접열영향부의 강도 및 인성이 우수한 강재 및 이의 제조방법을 제공하고자 하는 것이다.
PCT/KR2019/016740 2018-11-29 2019-11-29 용접열영향부 인성이 우수한 강재 및 이의 제조방법 WO2020111874A2 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201980076999.9A CN113166884A (zh) 2018-11-29 2019-11-29 焊接热影响区韧性优异的钢材及其制造方法
CA3121217A CA3121217C (en) 2018-11-29 2019-11-29 Steel plate having excellent heat affected zone toughness and method for manufacturing thereof
US17/298,881 US20220127704A1 (en) 2018-11-29 2019-11-29 Steel plate having excellent heat affected zone toughness and method for manufacturing thereof
EP19889074.1A EP3889293A4 (en) 2018-11-29 2019-11-29 SHEET STEEL WITH EXCELLENT TENACITY OF AREA AFFECTED BY HEAT AND ITS MANUFACTURING PROCESS
JP2021530177A JP7236540B2 (ja) 2018-11-29 2019-11-29 溶接熱影響部の靭性に優れた鋼材及びその製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0150705 2018-11-29
KR1020180150705A KR102209581B1 (ko) 2018-11-29 2018-11-29 용접열영향부 인성이 우수한 강재 및 이의 제조방법

Publications (2)

Publication Number Publication Date
WO2020111874A2 WO2020111874A2 (ko) 2020-06-04
WO2020111874A3 true WO2020111874A3 (ko) 2020-08-06

Family

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PCT/KR2019/016740 WO2020111874A2 (ko) 2018-11-29 2019-11-29 용접열영향부 인성이 우수한 강재 및 이의 제조방법

Country Status (7)

Country Link
US (1) US20220127704A1 (ko)
EP (1) EP3889293A4 (ko)
JP (1) JP7236540B2 (ko)
KR (1) KR102209581B1 (ko)
CN (1) CN113166884A (ko)
CA (1) CA3121217C (ko)
WO (1) WO2020111874A2 (ko)

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Publication number Priority date Publication date Assignee Title
KR20230078073A (ko) * 2021-11-26 2023-06-02 주식회사 포스코 용접 열영향부 인성이 우수한 강재 및 그 제조방법
CN114150228B (zh) * 2021-12-08 2022-07-26 东北大学 一种抗大线能量焊接的建筑用钢及其生产方法
CN114952191B (zh) * 2022-06-01 2023-08-04 昆明理工大学 一种高镍含氮双相不锈钢的高性能焊接热影响区热加工方法
WO2024090614A1 (ko) * 2022-10-27 2024-05-02 주식회사 포스코 용접 열영향부 인성이 우수한 강재 및 그 제조방법

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040040485A (ko) * 2002-09-04 2004-05-12 제이에프이 스틸 가부시키가이샤 대입열용접용 강재 및 그 제조방법
JP4897126B2 (ja) * 2010-05-27 2012-03-14 新日本製鐵株式会社 厚鋼板の製造方法
KR20140083539A (ko) * 2012-12-26 2014-07-04 주식회사 포스코 용접구조물용 강재 및 그의 제조방법, 용접후열처리된 용접구조물 및 그의 제조방법
KR20150075004A (ko) * 2013-12-24 2015-07-02 주식회사 포스코 용접열영향부 인성이 우수한 초고강도 용접구조용 강재 및 이의 제조방법
KR20170128575A (ko) * 2015-03-26 2017-11-22 제이에프이 스틸 가부시키가이샤 구조관용 강판, 구조관용 강판의 제조 방법, 및 구조관

Also Published As

Publication number Publication date
CN113166884A (zh) 2021-07-23
JP2022510216A (ja) 2022-01-26
CA3121217C (en) 2023-09-26
KR20200064510A (ko) 2020-06-08
US20220127704A1 (en) 2022-04-28
CA3121217A1 (en) 2020-06-04
EP3889293A2 (en) 2021-10-06
WO2020111874A2 (ko) 2020-06-04
JP7236540B2 (ja) 2023-03-09
KR102209581B1 (ko) 2021-01-28
EP3889293A4 (en) 2021-11-03

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