KR101668532B1 - 항복강도 및 충격인성이 우수한 슈퍼 듀플렉스 스테인리스강 및 그 제조방법 - Google Patents

항복강도 및 충격인성이 우수한 슈퍼 듀플렉스 스테인리스강 및 그 제조방법 Download PDF

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KR101668532B1
KR101668532B1 KR1020140191169A KR20140191169A KR101668532B1 KR 101668532 B1 KR101668532 B1 KR 101668532B1 KR 1020140191169 A KR1020140191169 A KR 1020140191169A KR 20140191169 A KR20140191169 A KR 20140191169A KR 101668532 B1 KR101668532 B1 KR 101668532B1
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KR
South Korea
Prior art keywords
phase
stainless steel
minutes
duplex stainless
yield strength
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KR1020140191169A
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English (en)
Korean (ko)
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KR20160080316A (ko
Inventor
전종진
신동익
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주식회사 포스코
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Priority to KR1020140191169A priority Critical patent/KR101668532B1/ko
Priority to CN201580071309.2A priority patent/CN107109603B/zh
Priority to US15/536,356 priority patent/US20170327923A1/en
Priority to JP2017528546A priority patent/JP2018501403A/ja
Priority to EP15873621.5A priority patent/EP3239340A4/fr
Priority to PCT/KR2015/014114 priority patent/WO2016105094A1/fr
Publication of KR20160080316A publication Critical patent/KR20160080316A/ko
Application granted granted Critical
Publication of KR101668532B1 publication Critical patent/KR101668532B1/ko

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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
    • 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
    • C21D1/26—Methods of annealing
    • 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
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and 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
    • 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
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips 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
    • C21D8/0221—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
    • 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
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C21D2211/004—Dispersions; Precipitations
    • 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
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
KR1020140191169A 2014-12-26 2014-12-26 항복강도 및 충격인성이 우수한 슈퍼 듀플렉스 스테인리스강 및 그 제조방법 KR101668532B1 (ko)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020140191169A KR101668532B1 (ko) 2014-12-26 2014-12-26 항복강도 및 충격인성이 우수한 슈퍼 듀플렉스 스테인리스강 및 그 제조방법
CN201580071309.2A CN107109603B (zh) 2014-12-26 2015-12-22 屈服强度和冲击韧性优异的超级双相不锈钢及其制造方法
US15/536,356 US20170327923A1 (en) 2014-12-26 2015-12-22 Super duplex stainless steel having excellent yield strength and impact toughness and menufacturing method therefor
JP2017528546A JP2018501403A (ja) 2014-12-26 2015-12-22 降伏強度及び衝撃靭性に優れたスーパー二相ステンレス鋼及びその製造方法
EP15873621.5A EP3239340A4 (fr) 2014-12-26 2015-12-22 Acier inoxydable super duplex présentant une excellente limite d'élasticité et résistance aux chocs et son procédé de fabrication
PCT/KR2015/014114 WO2016105094A1 (fr) 2014-12-26 2015-12-22 Acier inoxydable super duplex présentant une excellente limite d'élasticité et résistance aux chocs et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140191169A KR101668532B1 (ko) 2014-12-26 2014-12-26 항복강도 및 충격인성이 우수한 슈퍼 듀플렉스 스테인리스강 및 그 제조방법

Publications (2)

Publication Number Publication Date
KR20160080316A KR20160080316A (ko) 2016-07-08
KR101668532B1 true KR101668532B1 (ko) 2016-10-24

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KR1020140191169A KR101668532B1 (ko) 2014-12-26 2014-12-26 항복강도 및 충격인성이 우수한 슈퍼 듀플렉스 스테인리스강 및 그 제조방법

Country Status (6)

Country Link
US (1) US20170327923A1 (fr)
EP (1) EP3239340A4 (fr)
JP (1) JP2018501403A (fr)
KR (1) KR101668532B1 (fr)
CN (1) CN107109603B (fr)
WO (1) WO2016105094A1 (fr)

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DE102017204099A1 (de) * 2016-03-15 2017-09-21 Ksb Aktiengesellschaft Verfahren zur Herstellung von Bauteilen aus einem Duplexstahl sowie mit dem Verfahren hergestellte Bauteile
CN109385507B (zh) * 2018-12-20 2020-06-09 四川民盛特钢锻造有限公司 一种超低碳双相不锈钢钵体的热处理方法
CN113523166A (zh) * 2021-07-21 2021-10-22 苏州雷格姆海洋石油设备科技有限公司 深海连接器用25%Cr大壁厚超级双目不锈钢锻件的生产工艺
CN114164373B (zh) * 2021-11-10 2022-11-11 中国兵器科学研究院宁波分院 一种Nb微合金化双相不锈钢及其制备方法
CN114346142B (zh) * 2022-01-18 2023-07-14 山西太钢不锈钢股份有限公司 一种提高s32750超级双相不锈钢圆钢低温冲击韧性的锻造方法
CN114657335B (zh) * 2022-04-01 2023-06-16 山西太钢不锈钢股份有限公司 超级双相不锈钢及其退火方法
CN115341074B (zh) * 2022-09-05 2024-01-09 江苏圣珀新材料科技有限公司 一种双相钢的退火工艺

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JPH0819462B2 (ja) * 1989-08-22 1996-02-28 日本治金工業株式会社 耐孔食性に優れた２相ステンレス鋼板の製造方法
ATE195559T1 (de) * 1994-05-21 2000-09-15 Park Yong S Rostfreies duplex-stahl mit guter korrosionsbeständigkeit
EP0777756B2 (fr) * 1995-06-05 2004-03-17 POHANG IRON & STEEL CO., LTD. Procede de fabrication d'un acier inoxydable duplex
KR100460346B1 (ko) * 2002-03-25 2004-12-08 이인성 금속간상의 형성이 억제된 내식성, 내취화성, 주조성 및열간가공성이 우수한 슈퍼 듀플렉스 스테인리스강
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JP2006274323A (ja) * 2005-03-28 2006-10-12 Kokino Zairyo Kogaku Kenkyusho:Kk 高硬度で優れた耐食性を有するナノ結晶合金鋼粉末及び高強度・強靱で優れた耐食性を有するナノ結晶合金鋼バルク材並びにそれらの製造方法
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KR20140083169A (ko) * 2012-12-24 2014-07-04 주식회사 포스코 듀플렉스 스테인리스강 및 그 제조방법
KR101615453B1 (ko) * 2014-12-19 2016-04-25 주식회사 포스코 항복강도가 우수한 슈퍼 듀플렉스 스테인리스강 및 이의 제조방법

Also Published As

Publication number Publication date
EP3239340A1 (fr) 2017-11-01
CN107109603B (zh) 2019-05-07
CN107109603A (zh) 2017-08-29
JP2018501403A (ja) 2018-01-18
WO2016105094A1 (fr) 2016-06-30
US20170327923A1 (en) 2017-11-16
KR20160080316A (ko) 2016-07-08
EP3239340A4 (fr) 2018-07-25

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