MA50559B1 - Tôle d'acier laminée à froid et traitée thermiquement et son procédé de fabrication - Google Patents

Tôle d'acier laminée à froid et traitée thermiquement et son procédé de fabrication

Info

Publication number
MA50559B1
MA50559B1 MA50559A MA50559A MA50559B1 MA 50559 B1 MA50559 B1 MA 50559B1 MA 50559 A MA50559 A MA 50559A MA 50559 A MA50559 A MA 50559A MA 50559 B1 MA50559 B1 MA 50559B1
Authority
MA
Morocco
Prior art keywords
steel sheet
rolled
cold
heat
bainite
Prior art date
Application number
MA50559A
Other languages
English (en)
Other versions
MA50559A (fr
Inventor
Artem Arlazarov
Jean-Marc Pipard
Original Assignee
Arcelormittal
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 Arcelormittal filed Critical Arcelormittal
Publication of MA50559A publication Critical patent/MA50559A/fr
Publication of MA50559B1 publication Critical patent/MA50559B1/fr

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    • 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
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • 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
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    • 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
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    • 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
    • C21D8/0236—Cold rolling
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    • 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
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    • 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
    • C21D8/0273—Final recrystallisation annealing
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    • 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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    • 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
    • C21D8/0436—Cold rolling
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    • 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
    • C21D8/0447—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 heat treatment
    • C21D8/0473—Final recrystallisation annealing
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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
    • 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
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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
    • 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
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
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    • 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
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    • 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
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    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

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  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Cette invention concerne une tôle d'acier laminée à froid et traitée thermiquement ayant une composition comprenant les éléments suivants, exprimés en pourcentage en poids : 0,10 % = carbone = 0,5 %, 1 % = manganèse = 3,4 %, 0,5 % = silicium = 2,5 %, 0,03 % = aluminium = 1,5 %, soufre = 0,003 %, 0,002 % = phosphore = 0,02 %, azote = 0,01 % et pouvant contenir un ou plusieurs des éléments facultatifs suivants : 0,05 % = chrome = 1 %, 0,001 % = molybdène = 0, 5 %, 0,001 % = niobium = 0,1 %, 0,001 % = titane = 0,1 %, 0,01 % = cuivre = 2 %, 0,01 % = nickel = 3 %, 0,0001 % = calcium = 0,005 %, vanadium = 0,1 %, bore = 0,003 %, cérium = 0,1 %, magnésium = 0,010 %, zirconium = 0,010 %, la composition restante étant composée de fer et des inévitables impuretés produites par le traitement, et une microstructure de ladite tôle d'acier comprenant en fraction de surface, 10 à 30 % d'austénite résiduelle, 5 à 50 % de bainite recuite, 10 à 40 % de bainite, 1 % à 20 % de martensite trempée et moins de 30 % de martensite revenue, la présence combinée de bainite et d'austénite résiduelle étant supérieure ou égale à 30 %.
MA50559A 2017-11-10 2018-11-05 Tôle d'acier laminée à froid et traitée thermiquement et son procédé de fabrication MA50559B1 (fr)

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PCT/IB2017/057042 WO2019092483A1 (fr) 2017-11-10 2017-11-10 Tôle d'acier laminée à froid et traitée thermiquement et son procédé de fabrication
PCT/IB2018/058665 WO2019092577A1 (fr) 2017-11-10 2018-11-05 Tôle d'acier laminée à froid et traitée thermiquement et son procédé de fabrication

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MA50559B1 true MA50559B1 (fr) 2024-05-31

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KR (1) KR102466821B1 (fr)
CN (1) CN111433379A (fr)
BR (1) BR112020007410B1 (fr)
CA (1) CA3080674C (fr)
FI (1) FI3707289T3 (fr)
MA (1) MA50559B1 (fr)
MX (1) MX2020004784A (fr)
PL (1) PL3707289T3 (fr)
RU (1) RU2757020C1 (fr)
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WO2020245627A1 (fr) * 2019-06-03 2020-12-10 Arcelormittal Tôle d'acier laminée à froid et revêtue et son procédé de fabrication
DE112020007334T5 (de) * 2020-06-19 2023-03-30 Hyundai Steel Company Formstahl und verfahren zur herstellung desselben
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WO2022123289A1 (fr) * 2020-12-08 2022-06-16 Arcelormittal Tôle d'acier laminée à froid et traitée thermiquement et son procédé de fabrication
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MX2020004784A (es) 2020-08-13
UA128251C2 (uk) 2024-05-22
BR112020007410A2 (pt) 2020-10-27
KR102466821B1 (ko) 2022-11-14
CN111433379A (zh) 2020-07-17
EP3707289A1 (fr) 2020-09-16
CA3080674C (fr) 2023-03-07
FI3707289T3 (fi) 2024-05-21
KR20200064125A (ko) 2020-06-05
MA50559A (fr) 2020-09-16
JP2023011853A (ja) 2023-01-24
BR112020007410B1 (pt) 2023-10-24
US11365468B2 (en) 2022-06-21
JP2021502484A (ja) 2021-01-28
PL3707289T3 (pl) 2024-06-10
WO2019092577A1 (fr) 2019-05-16
CA3080674A1 (fr) 2019-05-16
WO2019092483A1 (fr) 2019-05-16
RU2757020C1 (ru) 2021-10-08
EP3707289B1 (fr) 2024-04-10
US20200354823A1 (en) 2020-11-12
ZA202002313B (en) 2021-08-25

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