Austenite decomposition during press hardening of a boron steel -: Computer simulation and test

被引：112

作者：

Åkerström, P ^{[1
]}

Oldenburg, M ^{[1
]}

机构：

[1] Lulea Univ Technol, Div Solid Mech, SE-97187 Lulea, Sweden

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2006年 / 174卷 / 1-3期

关键词：

austenite decomposition modelling; press hardening; boron steel; hardness estimation;

D O I：

10.1016/j.jmatprotec.2006.02.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work a model to predict the austenite decomposition into ferrite, pearlite, bainite and martensite during arbitrary cooling paths for thin sheet boron steel is used. The model is based on Kirkaldy's rate equations. The basic rate equations has been modified to account for the austenite stabilization effect from the added boron. The model is implemented as part of a material subroutine in the Finite Element Program LS-DYNA 970. Both the obtained simulated volume fractions microconstituents and hardness profiles shows promising agreement to the corresponding experimental observations. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：399 / 406

页数：8

共 21 条

[1] Granulation, Phase Change, and Microstructure - Kinetics of Phase Change. III [J].

Avrami, M .

JOURNAL OF CHEMICAL PHYSICS, 1941, 9 (02) :177-184

[2] Kinetics of phase change I - General theory [J].

Avrami, M .

JOURNAL OF CHEMICAL PHYSICS, 1939, 7 (12) :1103-1112

[3]

Avrami M., 1940, J CHEM PHYS, V8, P212, DOI [10.1063/1.1750631, DOI 10.1063/1.1750631]

[4]

Belytschko T., 2013, NONLINEAR FINITE ELE

[5] A finite element model for thermomechanical analysis of sheet metal forming [J].

Bergman, G ;

Oldenburg, M .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 2004, 59 (09) :1167-1186

[6]

BERGMAN G, 1999, THESIS LULEA U TECHN

[7]

BHADESHIA BKD, 1992, 504 I MAT

[8]

CHANDRAN BG, 1999, 3 WORLD C STRUCT MUL

[9]

Hallquist J, 1991, Ls-dyna theoretical manual

[10] COUPLED TRANSIENT HEAT-TRANSFER .B. MICROSTRUCTURE WELD COMPUTATIONS [J].

HENWOOD, C ;

BIBBY, M ;

GOLDAK, J ;

WATT, D .

ACTA METALLURGICA, 1988, 36 (11) :3037-3046

← 1 2 3 →