A model for Ti-6Al-4V microstructure evolution for arbitrary temperature changes

被引：66

作者：

Murgau, C. Charles ^{[1
]}

Pederson, R. ^{[2
,3
]}

Lindgren, L. E. ^{[4
]}

机构：

[1] Univ West, Dept Engn Sci, S-46129 Trollhattan, Sweden

[2] Lulea Univ Technol, Div Mat Sci, S-97181 Lulea, Sweden

[3] Volvo Aero Corp, Dept Mat Technol, S-46181 Trollhattan, Sweden

[4] Lulea Univ Technol, Div Mat Mech, S-97187 Lulea, Sweden

来源：

MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING | 2012年 / 20卷 / 05期

关键词：

ALPHA-PHASE TRANSFORMATION; TITANIUM-ALLOY; BETA-PHASE; KINETICS; AUSTENITE; STEELS; DECOMPOSITION; SIMULATIONS;

D O I：

10.1088/0965-0393/20/5/055006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents a microstructure model for the titanium alloy Ti-6Al-4V designed to be used in coupled thermo-metallurgical-mechanical simulations of, e.g., welding processes. The microstructure evolution is increasingly taken into consideration in analyses of manufacturing processes since it directly affects the mechanical properties. Thermally driven phase evolutions are accounted for in the model. A state variable approach is adopted to represent the microstructure with the objective to integrate the microstructure changes with a thermomechanical model of manufacturing process simulation such as welding. The model is calibrated using the literature data and also validated against a cyclic temperature history during multi-pass welding.

引用

页数：23

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