CO5111044A1 - Para la preparacion de dichos aceros - Google Patents

Para la preparacion de dichos aceros

Info

Publication number
CO5111044A1
CO5111044A1 CO99078980A CO99078980A CO5111044A1 CO 5111044 A1 CO5111044 A1 CO 5111044A1 CO 99078980 A CO99078980 A CO 99078980A CO 99078980 A CO99078980 A CO 99078980A CO 5111044 A1 CO5111044 A1 CO 5111044A1
Authority
CO
Colombia
Prior art keywords
temperature
steel
austenite
piece
ferrite
Prior art date
Application number
CO99078980A
Other languages
English (en)
Inventor
Koo Jayoung
V Bangaru Narasimha-Ra
Ayer Raghavan
Original Assignee
Exxonmobil Upstream Res Co
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 Exxonmobil Upstream Res Co filed Critical Exxonmobil Upstream Res Co
Publication of CO5111044A1 publication Critical patent/CO5111044A1/es

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
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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
    • 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
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • 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
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

Un método para preparar una lámina de acero con una microestructura que comprende hasta 40% en volumen de una primera fase de ferrita, desde 50 - 90% en volumen de una segunda fase conformada predominantemente por formaciones de martensita de grano fino, por bainita inferior de grano fino, por bainita granular fina (FGB), ó por mezclas de éstas; y hasta 10% en volumen de una tercera fase de austenita retenida, en donde dicho método comprende los pasos de: (a) calentamiento de una pieza de acero a una temperatura de re-calentamiento suficientemente alta como para: (i) sustancialmente homogeneizar la pieza de acero, (ii) disolver sustancialmente todos los carburos y carbonitruros de niobio y vanadio presentes en dicha pieza de acero, y (iii) establecer granos finos, iniciales, de austenita en dicha pieza de acero; (b) reducción de dicha pieza de acero a fin de formar una lámina de acero en una ó más pasadas del laminado en caliente en un primer rango de temperaturas dentro del cual la austenita se recristaliza; (c) reducción adicional de la lámina de acero en una ó más pasadas del laminado en caliente en un segundo rango de temperaturas ubicadas por debajo de la temperatura por debajo de la cual la austenita no se cristaliza (temperatura Tnr) y por encima de la temperatura a la cual la austenita comienza a transformarse en ferrita durante el enfriamiento (temperatura de transformación Ar3); (d) reducción adicional de dicha lámina de acero en una ó más pasadas del laminado en caliente en un tercer rango de temperaturas ubicadas entre la temperatura a la cual la austenita comienza a transformarse en ferrita durante el enfriamiento (temperatura de transformación Ar3) y la temperatura a la cual se completa la transformación de la austenita a ferrita o a ferrita más cementita durante el calentamiento (temperatura de transformación Ar1); (e) templado de dicha lámina de acero a una velocidad de enfriamiento de por lo menos 10°C por segundo 18°F/seg) a una Temperatura de Detención del Templado ubicada por debajo de 600°C (1110°F); y ... <EMI FILE="99078980_1" ID="1" IMF=JPEG >
CO99078980A 1998-12-19 1999-12-17 Para la preparacion de dichos aceros CO5111044A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/215,772 US6159312A (en) 1997-12-19 1998-12-19 Ultra-high strength triple phase steels with excellent cryogenic temperature toughness

Publications (1)

Publication Number Publication Date
CO5111044A1 true CO5111044A1 (es) 2001-12-26

Family

ID=22804322

Family Applications (1)

Application Number Title Priority Date Filing Date
CO99078980A CO5111044A1 (es) 1998-12-19 1999-12-17 Para la preparacion de dichos aceros

Country Status (27)

Country Link
US (1) US6159312A (es)
EP (1) EP1144698A4 (es)
JP (1) JP2002533567A (es)
KR (1) KR100650301B1 (es)
CN (1) CN1125882C (es)
AR (1) AR023351A1 (es)
AT (1) AT410446B (es)
AU (1) AU761119B2 (es)
BR (1) BR9916381A (es)
CA (1) CA2353926A1 (es)
CO (1) CO5111044A1 (es)
DE (1) DE19983820T1 (es)
DK (1) DK200100944A (es)
DZ (1) DZ2970A1 (es)
EG (1) EG22122A (es)
FI (1) FI113550B (es)
GB (1) GB2358873B (es)
GC (1) GC0000086A (es)
ID (1) ID29178A (es)
MX (1) MXPA01006270A (es)
MY (1) MY115511A (es)
PE (1) PE20001528A1 (es)
RU (1) RU2234542C2 (es)
SE (1) SE523866C2 (es)
TN (1) TNSN99244A1 (es)
TW (1) TW550300B (es)
WO (1) WO2000037689A1 (es)

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Also Published As

Publication number Publication date
US6159312A (en) 2000-12-12
TNSN99244A1 (fr) 2001-12-31
FI113550B (fi) 2004-05-14
ATA911699A (de) 2002-09-15
GB2358873A (en) 2001-08-08
SE0102044L (sv) 2001-08-09
WO2000037689A1 (en) 2000-06-29
DK200100944A (da) 2001-06-18
SE0102044D0 (sv) 2001-06-11
CN1125882C (zh) 2003-10-29
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AT410446B (de) 2003-04-25
MY115511A (en) 2003-06-30
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GB0114058D0 (en) 2001-08-01
AR023351A1 (es) 2002-09-04
CA2353926A1 (en) 2000-06-29
SE523866C2 (sv) 2004-05-25
GB2358873B (en) 2003-02-26
KR20010081084A (ko) 2001-08-25
DE19983820T1 (de) 2002-01-31
EP1144698A4 (en) 2004-10-27
BR9916381A (pt) 2001-09-11
CN1331758A (zh) 2002-01-16
JP2002533567A (ja) 2002-10-08
AU2709700A (en) 2000-07-12
KR100650301B1 (ko) 2006-11-28
GC0000086A (en) 2004-06-30
PE20001528A1 (es) 2001-01-23
EG22122A (en) 2002-08-30
DZ2970A1 (fr) 2005-05-29
TW550300B (en) 2003-09-01
FI20011290A (fi) 2001-06-18
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ID29178A (id) 2001-08-09
MXPA01006270A (es) 2002-08-12

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