WO2018009041A8 - 균열전파 저항성 및 연성이 우수한 열간성형 부재 및 이의 제조방법 - Google Patents

균열전파 저항성 및 연성이 우수한 열간성형 부재 및 이의 제조방법 Download PDF

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WO2018009041A8
WO2018009041A8 PCT/KR2017/007328 KR2017007328W WO2018009041A8 WO 2018009041 A8 WO2018009041 A8 WO 2018009041A8 KR 2017007328 W KR2017007328 W KR 2017007328W WO 2018009041 A8 WO2018009041 A8 WO 2018009041A8
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hot press
formed member
ductility
crack propagation
propagation resistance
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PCT/KR2017/007328
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French (fr)
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WO2018009041A1 (ko
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오진근
김성우
조열래
박원모
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주식회사 포스코
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Priority to ES17824596T priority Critical patent/ES2917620T3/es
Priority to CN201780042360.XA priority patent/CN109477191A/zh
Priority to EP17824596.5A priority patent/EP3483297B1/en
Priority to US16/315,767 priority patent/US11827947B2/en
Priority to MX2019000298A priority patent/MX2019000298A/es
Priority to PL17824596.5T priority patent/PL3483297T3/pl
Priority to CN202310830369.4A priority patent/CN116837295A/zh
Priority to JP2019500276A priority patent/JP6762415B2/ja
Publication of WO2018009041A1 publication Critical patent/WO2018009041A1/ko
Publication of WO2018009041A8 publication Critical patent/WO2018009041A8/ko
Priority to US18/375,764 priority patent/US20240026479A1/en

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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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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    • 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
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
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  • Crystallography & Structural Chemistry (AREA)
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  • Heat Treatment Of Sheet Steel (AREA)
  • Coating With Molten Metal (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Heat Treatment Of Articles (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
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Abstract

본 발명은 자동차용 소재로 적합한 열간성형 부재에 관한 것으로서, 보다 상세하게는 균열전파 저항성 및 연성이 우수한 열간성형 부재 및 그 제조방법에 관한 것이다. 본 발명은 중량%로, 탄소(C): 0.08~0.30%, 실리콘(Si): 0.01~2.0%, 망간(Mn): 3.1~8.0%, 알루미늄(Al): 0.001~0.5%, 인(P): 0.001~0.05%, 황(S): 0.0001~0.02%, 질소(N): 0.02% 이하, 잔부 Fe 및 기타 불순물을 포함하는 소지강판과 소지강판의 적어도 일면에 아연 또는 아연합금 도금층을 포함하는 열간성형 부재로서, 미세조직으로 1~30면적%의 잔류 오스테나이트를 포함하고, 도금층 표층으로부터 두께 방향 0.5~1.2㎛의 산화층 내 Mn(중량%)/Zn(중량%)의 함량비가 0.1 이상인 균열전파 저항성 및 연성이 우수한 열간성형 부재와 그 제조방법에 관한 것이다.
PCT/KR2017/007328 2016-07-07 2017-07-07 균열전파 저항성 및 연성이 우수한 열간성형 부재 및 이의 제조방법 WO2018009041A1 (ko)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ES17824596T ES2917620T3 (es) 2016-07-07 2017-07-07 Miembro formador en caliente con excelente resistencia a la propagación de grietas y ductilidad, y procedimiento para su producción
CN201780042360.XA CN109477191A (zh) 2016-07-07 2017-07-07 耐裂纹扩展性及延展性优异的热压成型部件及其制造方法
EP17824596.5A EP3483297B1 (en) 2016-07-07 2017-07-07 Hot forming member having excellent crack propagation resistance and ductility, and method for producing same
US16/315,767 US11827947B2 (en) 2016-07-07 2017-07-07 Hot press-formed member having excellent crack propagation resistance and ductility, and method for producing same
MX2019000298A MX2019000298A (es) 2016-07-07 2017-07-07 Miembro formado a presion en caliente que tiene excelente resistencia a la propagacion de grieta y ductilidad, y metodo para producir el mismo.
PL17824596.5T PL3483297T3 (pl) 2016-07-07 2017-07-07 Element formowany na gorąco posiadający doskonałą odporność na propagację pęknięć i ciągliwość oraz sposób jego wytwarzania
CN202310830369.4A CN116837295A (zh) 2016-07-07 2017-07-07 耐裂纹扩展性及延展性优异的热压成型部件及其制造方法
JP2019500276A JP6762415B2 (ja) 2016-07-07 2017-07-07 亀裂伝播抵抗性及び延性に優れた熱間成形部材、及びその製造方法
US18/375,764 US20240026479A1 (en) 2016-07-07 2023-10-02 Hot press-formed member having excellent crack propagation resistance and ductility, and method for producing same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160086248A KR101819345B1 (ko) 2016-07-07 2016-07-07 균열전파 저항성 및 연성이 우수한 열간성형 부재 및 이의 제조방법
KR10-2016-0086248 2016-07-07

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US16/315,767 A-371-Of-International US11827947B2 (en) 2016-07-07 2017-07-07 Hot press-formed member having excellent crack propagation resistance and ductility, and method for producing same
US18/375,764 Continuation US20240026479A1 (en) 2016-07-07 2023-10-02 Hot press-formed member having excellent crack propagation resistance and ductility, and method for producing same

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WO2018009041A1 WO2018009041A1 (ko) 2018-01-11
WO2018009041A8 true WO2018009041A8 (ko) 2018-04-26

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CN (2) CN116837295A (ko)
ES (1) ES2917620T3 (ko)
MX (1) MX2019000298A (ko)
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EP3778060A4 (en) * 2018-04-13 2022-04-13 Nippon Steel Corporation PRODUCTION METHOD FOR HOT PRESS MOLDED ARTICLES, PRESS MOLDED ARTICLE, MATRIX MOLD AND MOLD SET
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