BR112018012681A2 - chapa de aço de alta resistência e chapa de aço galvanizada de alta resistência - Google Patents

chapa de aço de alta resistência e chapa de aço galvanizada de alta resistência

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Publication number
BR112018012681A2
BR112018012681A2 BR112018012681-0A BR112018012681A BR112018012681A2 BR 112018012681 A2 BR112018012681 A2 BR 112018012681A2 BR 112018012681 A BR112018012681 A BR 112018012681A BR 112018012681 A2 BR112018012681 A2 BR 112018012681A2
Authority
BR
Brazil
Prior art keywords
steel sheet
less
high strength
retained austenite
martensite
Prior art date
Application number
BR112018012681-0A
Other languages
English (en)
Japanese (ja)
Inventor
Kawata Hiroyuki
Yamaguchi Yuji
Kitazawa Takayuki
Uchida Satoshi
Ueda Kohei
Maruyama Naoki
Original Assignee
Nippon Steel & Sumitomo Metal Corporation
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.)
Filing date
Publication date
Application filed by Nippon Steel & Sumitomo Metal Corporation filed Critical Nippon Steel & Sumitomo Metal Corporation
Publication of BR112018012681A2 publication Critical patent/BR112018012681A2/pt

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    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/01Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/013Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
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    • C21METALLURGY OF IRON
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    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/004Heat treatment of ferrous alloys containing Cr and Ni
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    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/005Heat treatment of ferrous alloys containing Mn
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    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/008Heat treatment of ferrous alloys containing Si
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    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
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    • C21METALLURGY OF IRON
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    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226Hot rolling
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    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
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    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263Modifying 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
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    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
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    • C21D8/0273Final recrystallisation annealing
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    • C22C38/34Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
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    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
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    • C22C38/42Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
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    • C22C38/58Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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    • C23C2/06Zinc or cadmium or alloys based thereon
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    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
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    • C23C2/36Elongated material
    • C23C2/40Plates; Strips
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    • C25D5/00Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
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    • C25D7/00Electroplating characterised by the article coated
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    • C21D2211/00Microstructure comprising significant phases
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    • C21D2211/00Microstructure comprising significant phases
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    • C25D5/34Pretreatment of metallic surfaces to be electroplated
    • C25D5/36Pretreatment of metallic surfaces to be electroplated of iron or steel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
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    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771Transition metal-base component
    • Y10T428/12785Group IIB metal-base component
    • Y10T428/12792Zn-base component
    • Y10T428/12799Next to Fe-base component [e.g., galvanized]

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  • Chemical & Material Sciences (AREA)
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  • Organic Chemistry (AREA)
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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

esta chapa de aço de alta resistência tem uma composição química específica, tem microestruturas contendo, em termos de porcentagens em volume, 85% ou menos de ferrita, 3 a 95% de bainita, 1 a 80% de martensita temperada, 1 a 25% de austenita retida, um total de 5% ou menos de perlita e cementita bruta e 5% ou menos de martensita inicial em uma região correspondente a 1/8 a 3/8 da espessura da chapa a partir da superfície da chapa, com o centro da região sendo 1/4 da espessura, e é tal que a quantidade de carbono na solução sólida na austenita retida é 0,70 a 1,30% em massa, a razão de aspecto é 2,50 ou menos, e entre todas as bordas do grão dos grãos de austenita retida que tenham um diâmetro de círculo equivalente de 0,80 ¿m ou mais, a proporção das bordas com martensita temperada ou martensita inicial é de 75% ou menos.
BR112018012681-0A 2016-03-25 2017-03-23 chapa de aço de alta resistência e chapa de aço galvanizada de alta resistência BR112018012681A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2016-062645 2016-03-25
JP2016062645 2016-03-25
PCT/JP2017/011883 WO2017164346A1 (ja) 2016-03-25 2017-03-23 高強度鋼板および高強度亜鉛めっき鋼板

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BR112018012681A2 true BR112018012681A2 (pt) 2018-12-04

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US (1) US11035021B2 (pt)
EP (1) EP3434801B1 (pt)
JP (1) JP6288394B2 (pt)
KR (1) KR102099769B1 (pt)
CN (1) CN108495943B (pt)
BR (1) BR112018012681A2 (pt)
MX (1) MX2018007364A (pt)
TW (1) TWI611027B (pt)
WO (1) WO2017164346A1 (pt)

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WO2019092481A1 (en) * 2017-11-10 2019-05-16 Arcelormittal Cold rolled steel sheet and a method of manufacturing thereof
RU2020116368A (ru) 2017-11-15 2021-12-15 Ниппон Стил Корпорейшн Высокопрочный холоднокатаный стальной лист
WO2019102258A1 (en) * 2017-11-27 2019-05-31 Arcelormittal Method for manufacturing a rail and corresponding rail
CN111406124B (zh) * 2017-11-29 2021-11-09 杰富意钢铁株式会社 高强度冷轧钢板及其制造方法
WO2019122963A1 (en) * 2017-12-19 2019-06-27 Arcelormittal Cold rolled and heat treated steel sheet and a method of manufacturing thereof
WO2019122965A1 (en) * 2017-12-19 2019-06-27 Arcelormittal Cold rolled and coated steel sheet and a method of manufacturing thereof
US11680303B2 (en) 2018-03-30 2023-06-20 Nippon Steel Corporation Steel sheet and manufacturing method therefor
CN111971408B (zh) * 2018-03-30 2021-10-29 日本制铁株式会社 钢板及其制造方法
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