Multiscale mechanics of TRIP-assisted multiphase steels:: II.: Micromechanical modelling

被引：135
|
作者：
Lani, F.
Furnemont, Q.
Van Rompaey, T.
Delannay, F.
Jacques, P. J.
Pardoen, T.
机构：
[1] Catholic Univ Louvain, IMAP, Dept Mat Sci & Proc, B-1348 Louvain, Belgium
[2] CENAERO, Ctr Excellence Aeronaut, B-6041 Gosselies, Belgium
[3] Katholieke Univ Leuven, Dept Met & Mat Engn, B-3001 Heverlee, Belgium
来源：
ACTA MATERIALIA | 2007年 / 55卷 / 11期
关键词：
steels; mechanical properties; multiphase microstructure; martensitic phase transformation; mean field analysis;
D O I：
10.1016/j.actamat.2007.02.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The stress and strain partitioning between the different phases of transformation-induced plasticity (TRIP)-aided multiphase steels is evaluated using a mean field homogenization approach. The change of the austenite volume fraction under straining is predicted using a micromechanics-based criterion for the martensitic transformation adapted to the case of small, isolated, transforming austenite grains. The parameters of the model are identified from the mechanical response and transformation kinetics measured under uniaxial tension for two steels differing essentially by the austenite stability. The model is validated by comparing the predictions with tests performed under different loading conditions: pure shear, intermediate biaxial and equibiaxial. An analysis of the effect of the austenite stability on strength and ductility provides guidelines for optimizing properties according to the stress state. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：3695 / 3705
页数：11
相关论文
共 50 条
  • [1] Multiscale mechanics of TRIP-assisted multiphase steels:: I.: Characterization and mechanical testing
    Jacques, P. J.
    Furnemont, Q.
    Lani, F.
    Pardoen, T.
    Delannay, F.
    [J]. ACTA MATERIALIA, 2007, 55 (11) : 3681 - 3693
  • [2] Micromechanical characterisation of TRIP-assisted multiphase steels by in situ neutron diffraction
    Jacques, PJ
    Furnemont, Q
    Godet, S
    Pardoen, T
    Conlon, KT
    Delannay, F
    [J]. PHILOSOPHICAL MAGAZINE, 2006, 86 (16) : 2371 - 2392
  • [3] Critical assessment of the micromechanical behaviour of dual phase and trip-assisted multiphase steels
    Furnémont, Q
    Lacroix, G
    Godet, S
    Conlon, KT
    Jacques, PJ
    [J]. CANADIAN METALLURGICAL QUARTERLY, 2004, 43 (01) : 35 - 42
  • [4] The developments of cold-rolled TRIP-assisted multiphase steels. Low silicon TRIP-assisted multiphase steels
    Jacques, PJ
    Girault, E
    Harlet, P
    Delannay, F
    [J]. ISIJ INTERNATIONAL, 2001, 41 (09) : 1061 - 1067
  • [5] The developments of cold-rolled TRIP-assisted multiphase steels. Al-alloyed TRIP-assisted multiphase steels
    Jacques, PJ
    Girault, E
    Mertens, A
    Verlinden, B
    van Humbeeck, J
    Delannay, F
    [J]. ISIJ INTERNATIONAL, 2001, 41 (09) : 1068 - 1074
  • [6] The fracture toughness of TRIP-assisted multiphase steels
    Lacroix, G.
    Pardoen, T.
    Jacques, P. J.
    [J]. ACTA MATERIALIA, 2008, 56 (15) : 3900 - 3913
  • [7] Simulation of the hot rolling of TRIP-assisted multiphase steels
    Godet, S
    Jacques, PJ
    Harlet, P
    Delannay, F
    [J]. THERMEC'2003, PTS 1-5, 2003, 426-4 : 1273 - 1278
  • [8] Metallographic methods for revealing the multiphase microstructure of TRIP-assisted steels
    Girault, E
    Jacques, P
    Harlet, P
    Mols, K
    Van Humbeeck, J
    Aernoudt, E
    Delannay, F
    [J]. MATERIALS CHARACTERIZATION, 1998, 40 (02) : 111 - 118
  • [9] Mechanical stabilization of retained austenite in TRIP-assisted multiphase steels
    Godet, S
    Delannay, F
    Jacques, PJ
    [J]. HEAT TREATING, VOLS 1 AND 2, PROCEEDINGS, 2000, : 535 - 538
  • [10] TRIP-assisted steels?
    Bhadeshia, HKDH
    [J]. ISIJ INTERNATIONAL, 2002, 42 (09) : 1059 - 1060
12345