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MX2018012411A - Lamina de acero de alta resistencia y metodo para la fabricacion de la misma. - Google Patents

Lamina de acero de alta resistencia y metodo para la fabricacion de la misma.

Info

Publication number
MX2018012411A
MX2018012411A MX2018012411A MX2018012411A MX2018012411A MX 2018012411 A MX2018012411 A MX 2018012411A MX 2018012411 A MX2018012411 A MX 2018012411A MX 2018012411 A MX2018012411 A MX 2018012411A MX 2018012411 A MX2018012411 A MX 2018012411A
Authority
MX
Mexico
Prior art keywords
less
grain diameter
steel sheet
high strength
crystal grain
Prior art date
Application number
MX2018012411A
Other languages
English (en)
Inventor
Takashima Katsutoshi
Kobayashi Takashi
Funakawa Yoshimasa
Original Assignee
Jfe Steel Corp
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 Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of MX2018012411A publication Critical patent/MX2018012411A/es

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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
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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
    • C21D6/004—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
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    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
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    • C21—METALLURGY OF IRON
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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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    • C21—METALLURGY OF IRON
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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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    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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    • 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
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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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    • C21D8/04—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
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    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/003—Cementite
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    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
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    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

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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 Sheet Steel (AREA)

Abstract

Un objetivo es proporcionar una lámina de acero de alta resistencia excelente en términos de alargado, conformabilidad por expansión del agujero, procesabilidad por flexión y resistencia a la fractura retardada y un método para fabricar la lámina de acero. Una lámina de acero de alta resistencia que tiene una composición química que contiene, en % en masa, C: 0.15% a 0.25%, Si: 1.00% a 2.20%, Mn: 2.00% a 3.50%, P: 0.05% o menos, S: 0.005% o menos, Al: 0.01% a 0.50%, N: 0.010% o menos, B: 0.0003% a 0.0050%, uno, dos o más seleccionados de Ti: 0.005% a 0.05%, Cu: 0.003% a 0.50%, Ni: 0.003% a 0.50%, Sn: 0.003% a 0.50%, Co: 0.003% a 0.05%, y Mo: 0.003% a 0.50%, siendo el resto Fe e impurezas inevitables; y una microestructura que incluye, en términos de fracción de volumen, 15% o menos (incluido 0%) de ferrita que tiene un diámetro promedio de grano de cristal de 2 µm o menos, 2% a 15% de austenita retenida que tiene un diámetro promedio de grano de cristal de 2 µm o menos, 10% o menos (incluido 0%) de martensita que tiene un diámetro promedio de grano de cristal de 3 µm o menos, y el resto es bainita y martensita templada que tienen un diámetro promedio de grano de cristal de 6 µm o menos, en el cual el número promedio de granos de cementita con un diámetro de grano de 0.04 µm o más, existente en la bainita y en los granos de martensita templada, es de 10 o más.
MX2018012411A 2016-04-14 2017-03-22 Lamina de acero de alta resistencia y metodo para la fabricacion de la misma. MX2018012411A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016080947 2016-04-14
PCT/JP2017/011288 WO2017179372A1 (ja) 2016-04-14 2017-03-22 高強度鋼板およびその製造方法

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US (1) US11193180B2 (es)
EP (1) EP3444372B1 (es)
JP (1) JP6252713B1 (es)
KR (1) KR102121415B1 (es)
CN (1) CN109072381B (es)
MX (1) MX2018012411A (es)
WO (1) WO2017179372A1 (es)

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WO2019122963A1 (en) 2017-12-19 2019-06-27 Arcelormittal Cold rolled and heat treated steel sheet and a method of manufacturing thereof
EP3807429B1 (de) 2018-06-12 2025-01-08 ThyssenKrupp Steel Europe AG Stahlflachprodukt und verfahren zu seiner herstellung
KR102599376B1 (ko) 2019-02-06 2023-11-09 닛폰세이테츠 가부시키가이샤 용융 아연 도금 강판 및 그 제조 방법
JP6750771B1 (ja) 2019-02-06 2020-09-02 日本製鉄株式会社 溶融亜鉛めっき鋼板およびその製造方法
JP6750772B1 (ja) 2019-02-06 2020-09-02 日本製鉄株式会社 溶融亜鉛めっき鋼板およびその製造方法
WO2020179387A1 (ja) * 2019-03-07 2020-09-10 日本製鉄株式会社 熱延鋼板およびその製造方法
MX2021015578A (es) * 2019-06-28 2022-01-24 Nippon Steel Corp Lamina de acero.
JP7088140B2 (ja) * 2019-08-06 2022-06-21 Ｊｆｅスチール株式会社 高強度薄鋼板およびその製造方法
US12195819B2 (en) 2019-08-06 2025-01-14 Jfe Steel Corporation High-strength thin steel sheet and method for manufacturing same
JP7191796B2 (ja) * 2019-09-17 2022-12-19 株式会社神戸製鋼所 高強度鋼板およびその製造方法
EP4033000A4 (en) * 2019-09-19 2023-03-15 Baoshan Iron & Steel Co., Ltd. MARTENSITIC STEEL STRIP AND METHOD OF MANUFACTURING THEREOF
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