MX2020004029A - 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.

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Publication number
MX2020004029A
MX2020004029A MX2020004029A MX2020004029A MX2020004029A MX 2020004029 A MX2020004029 A MX 2020004029A MX 2020004029 A MX2020004029 A MX 2020004029A MX 2020004029 A MX2020004029 A MX 2020004029A MX 2020004029 A MX2020004029 A MX 2020004029A
Authority
MX
Mexico
Prior art keywords
steel sheet
manufacturing
strength steel
strength
mpa
Prior art date
Application number
MX2020004029A
Other languages
English (en)
Inventor
Tatsuya Nakagaito
Lingling Yang
Gosuke Ikeda
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
Priority claimed from PCT/JP2018/013074 external-priority patent/WO2019077777A1/ja
Publication of MX2020004029A publication Critical patent/MX2020004029A/es

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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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/013—Layered 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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    • C21—METALLURGY OF IRON
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    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
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    • 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
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    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
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    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
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    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
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    • C21—METALLURGY OF IRON
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    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0268—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment between cold rolling steps
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    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
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    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
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    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • 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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    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
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    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

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  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Electrochemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

Se proporcionan una lámina de acero de alta resistencia que tiene un límite elástico de 550 MPa o más y excelente resistencia a la fatiga de una soldadura y un método para la fabricación de la lámina de acero. Una lámina de acero de alta resistencia tiene una composición química especificada, una microestructura de acero observada en una sección transversal en una dirección de espesor paralela a una dirección de laminación que incluye de 40% a 75% de una fase de martensita en términos de fracción de volumen, en la cual una fracción de volumen total de granos de martensita cuyas relaciones promedio de diámetro de grano con respecto a granos de ferrita adyacentes son de 1/4 o más y 1 o menos es de 60% o más con respecto a una fase de martensita completa, y un límite elástico (YP) de 550 MPa o más.
MX2020004029A 2017-10-20 2018-03-29 Lamina de acero de alta resistencia y metodo para la fabricacion de la misma. MX2020004029A (es)

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KR102398709B1 (ko) 2022-05-16
KR20200052914A (ko) 2020-05-15
JPWO2019077777A1 (ja) 2019-11-14
JP6443594B1 (ja) 2018-12-26
CN114703347A (zh) 2022-07-05
US11345973B2 (en) 2022-05-31

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