BR112023023984A2 - METHOD FOR MANUFACTURING HIGH STRENGTH STEEL SHEET AND HIGH STRENGTH STEEL SHEET - Google Patents

METHOD FOR MANUFACTURING HIGH STRENGTH STEEL SHEET AND HIGH STRENGTH STEEL SHEET

Info

Publication number
BR112023023984A2
BR112023023984A2 BR112023023984A BR112023023984A BR112023023984A2 BR 112023023984 A2 BR112023023984 A2 BR 112023023984A2 BR 112023023984 A BR112023023984 A BR 112023023984A BR 112023023984 A BR112023023984 A BR 112023023984A BR 112023023984 A2 BR112023023984 A2 BR 112023023984A2
Authority
BR
Brazil
Prior art keywords
steel sheet
strength steel
stage
high strength
temperature range
Prior art date
Application number
BR112023023984A
Other languages
Portuguese (pt)
Inventor
Isabelle Tolleneer
Philippe Hernaut
Original Assignee
Nlmk Clabecq
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 Nlmk Clabecq filed Critical Nlmk Clabecq
Publication of BR112023023984A2 publication Critical patent/BR112023023984A2/en

Links

Classifications

    • 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
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • 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
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/60—Aqueous agents
    • 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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/613—Gases; Liquefied or solidified normally gaseous material
    • 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
    • C22C38/02—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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • 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

Abstract

método para fabricação de chapa de aço de alta resistência e chapa de aço de alta resistência. a presente invenção refere-se a um método para fabricação de chapa de aço de alta resistência, compreendendo a etapa de fornecer uma chapa de aço laminada a quente, a etapa de aquecimento (10) da chapa de aço até uma faixa de temperatura de austenitização, a etapa de têmpera (12) da chapa de aço em dois estágios (121, 122) com uma velocidade de resfriamento diferente aplicada a cada estágio, sendo a velocidade de resfriamento do primeiro estágio (121) maior do que a velocidade de resfriamento do segundo estágio (122), o primeiro estágio (121) da etapa de têmpera de dois estágios (12) terminando em uma faixa de temperatura acima de ms e o segundo estágio (122) da etapa de têmpera (12) começando em uma faixa de temperatura acima de ms e terminando em uma faixa de temperatura entre ms e mf, a etapa de particionamento (13) da chapa de aço. a invenção também refere-se a uma chapa de aço de alta resistência fabricada com o método.method for manufacturing high-strength steel plate and high-strength steel plate. The present invention relates to a method for manufacturing high-strength steel sheet, comprising the step of providing a hot-rolled steel sheet, the step of heating (10) the steel sheet to an austenitization temperature range , the quenching step (12) of the steel sheet in two stages (121, 122) with a different cooling speed applied to each stage, the cooling speed of the first stage (121) being greater than the cooling speed of the second stage (122), the first stage (121) of the two-stage quenching step (12) ending in a temperature range above ms and the second stage (122) of the quenching step (12) starting in a temperature range of temperature above ms and ending in a temperature range between ms and mf, the partitioning step (13) of the steel sheet. the invention also relates to a high-strength steel sheet manufactured using the method.

BR112023023984A 2021-05-20 2022-05-19 METHOD FOR MANUFACTURING HIGH STRENGTH STEEL SHEET AND HIGH STRENGTH STEEL SHEET BR112023023984A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/EP2021/063415 WO2022242859A1 (en) 2021-05-20 2021-05-20 Method for manufacturing a high strength steel plate and high strength steel plate
PCT/EP2022/063622 WO2022243461A1 (en) 2021-05-20 2022-05-19 Method for manufacturing a high strength steel plate and high strength steel plate

Publications (1)

Publication Number Publication Date
BR112023023984A2 true BR112023023984A2 (en) 2024-01-30

Family

ID=76217806

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112023023984A BR112023023984A2 (en) 2021-05-20 2022-05-19 METHOD FOR MANUFACTURING HIGH STRENGTH STEEL SHEET AND HIGH STRENGTH STEEL SHEET

Country Status (5)

Country Link
EP (1) EP4341451A1 (en)
CN (1) CN117377782A (en)
AU (1) AU2022278620A1 (en)
BR (1) BR112023023984A2 (en)
WO (2) WO2022242859A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61209413A (en) 1986-01-20 1986-09-17 Nippon Kogaku Kk <Nikon> Focus detector
US20060011274A1 (en) 2002-09-04 2006-01-19 Colorado School Of Mines Method for producing steel with retained austenite
JP2009173959A (en) * 2008-01-21 2009-08-06 Nakayama Steel Works Ltd High-strength steel sheet and producing method therefor
DE102013013067A1 (en) * 2013-07-30 2015-02-05 Salzgitter Flachstahl Gmbh Silicon-containing microalloyed high-strength multiphase steel having a minimum tensile strength of 750 MPa and improved properties and processes for producing a strip of this steel
WO2016001702A1 (en) * 2014-07-03 2016-01-07 Arcelormittal Method for producing a high strength coated steel sheet having improved strength, ductility and formability
WO2016001703A1 (en) * 2014-07-03 2016-01-07 Arcelormittal Method for manufacturing a high strength steel sheet and sheet obtained by the method
WO2016079565A1 (en) * 2014-11-18 2016-05-26 Arcelormittal Method for manufacturing a high strength steel product and steel product thereby obtained
MX2019006862A (en) 2016-12-14 2019-08-14 Thyssenkrupp Steel Europe Ag Hot-rolled flat steel product and method for the production thereof.
JP6638870B1 (en) * 2018-04-23 2020-01-29 日本製鉄株式会社 Steel member and method of manufacturing the same

Also Published As

Publication number Publication date
AU2022278620A1 (en) 2023-11-30
WO2022242859A1 (en) 2022-11-24
CN117377782A (en) 2024-01-09
EP4341451A1 (en) 2024-03-27
WO2022243461A1 (en) 2022-11-24

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