MX2021004413A - Lamina de acero y metodo para la produccion de la misma. - Google Patents

Lamina de acero y metodo para la produccion de la misma.

Info

Publication number
MX2021004413A
MX2021004413A MX2021004413A MX2021004413A MX2021004413A MX 2021004413 A MX2021004413 A MX 2021004413A MX 2021004413 A MX2021004413 A MX 2021004413A MX 2021004413 A MX2021004413 A MX 2021004413A MX 2021004413 A MX2021004413 A MX 2021004413A
Authority
MX
Mexico
Prior art keywords
sub
less
steel sheet
âμm
residual
Prior art date
Application number
MX2021004413A
Other languages
English (en)
Inventor
Katsutoshi Takashima
Yoshihiko Ono
Junya TOBATA
Yoichiro MATSUI
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 MX2021004413A publication Critical patent/MX2021004413A/es

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    • 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
    • C21D9/48Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
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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
    • 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
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02Winding-up or coiling
    • 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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    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • C21D1/19Hardening; Quenching with or without subsequent tempering by interrupted quenching
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    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • C21D1/19Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20Isothermal quenching, e.g. bainitic hardening
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    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • C21D1/25Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
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    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
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    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
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    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
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    • 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
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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
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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
    • C21D8/04Modifying 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
    • C21D8/0421Modifying 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
    • C21D8/0426Hot 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
    • C21D8/04Modifying 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
    • C21D8/0421Modifying 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
    • C21D8/0436Cold 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
    • C21D8/04Modifying 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
    • C21D8/0447Modifying 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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    • 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
    • C21D8/04Modifying 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
    • C21D8/0447Modifying 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
    • C21D8/0473Final recrystallisation annealing
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Abstract

Se proporcionan una lámina de acero y un método para la producción de la misma. En la presente invención, una lámina de acero tiene una composición química y una microestructura específicas. En la microestructura, ferrita está presente en una cantidad de 6 a 90% en términos de una fracción de área, un componente formado por una o más de entre bainita superior, martensita fresca, martensita revenida, bainita inferior, y ? retenida está presente en una cantidad de 10 a 94% en términos de fracción de área, y ? retenida está presente en una cantidad de 3 a 15% en términos de una fracción de volumen; una fracción de área total, indicada como SC-enriquecida, de regiones que tienen una concentración de C de 0.6 a 1.3% y donde una región adyacente está formada por bainita superior que tiene un ancho de eje menor de 0.7 a 10 µm, una relación de aspecto de más de 2.0, y una concentración de C de 0.07% o menos es de 0.1 a 5%; una fracción de área total, indicada como S?Bloque, de martensita fresca que tiene un diámetro de grano circular equivalente de 1.5 a 15 µm y una relación de aspecto de 3 o menos y/o granos de ? retenida que tienen un diámetro de grano circular equivalente de 1.5 a 15 µm y una relación de aspecto de 3 o menos es de 5% o menos (y 0% o más); y ? previa en una capa superficial tiene un diámetro de grano de 2 a 12 µm.
MX2021004413A 2018-10-18 2019-10-16 Lamina de acero y metodo para la produccion de la misma. MX2021004413A (es)

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EP4198149A4 (en) * 2020-10-06 2024-01-10 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) HIGH-STRENGTH COLD-ROLLED STEEL SHEET, HOT-DIP GALVANIZED STEEL SHEET, ALLOYED HOT-DIP GALVANIZED STEEL SHEET AND PRODUCTION PROCESSES THEREFOR
WO2023170245A1 (en) * 2022-03-10 2023-09-14 Tata Steel Nederland Technology B.V. High strength steel sheet with excellent hole expandability and method of producing the same
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CN112912525A (zh) 2021-06-04
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EP3845679A1 (en) 2021-07-07
KR102514896B1 (ko) 2023-03-30
WO2020080407A1 (ja) 2020-04-23
US20210324492A1 (en) 2021-10-21
CN112912525B (zh) 2022-06-21
JP6777262B2 (ja) 2020-10-28

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