Constitutive modeling of beta titanium alloy Ti-10V-4.5Fe-1.5Al during hot deformation process

Fengbo Han, Jinshan Li, Hongchao Kou, Bin Tang, Minjie Lai, Hui Chang

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

A constitutive model using dislocation density rate as an internal state variable has been proposed for hot working of β titanium alloy in this paper. The β phase was only taken into consideration during high temperature deformation. The solution strengthening and dislocation interaction were included in the constitutive equations. The strength coefficient was determined by equivalent vanadium content, V eq, which was calculated according to the alloy constituent. A Kocks-Mecking model was adopted to describe the variation of dislocation density. The constitutive relationship of a β titanium alloy Ti-10V-4.5Fe-1.5Al for high temperature deformation was established using the internal-state-variable based model. Model parameters were determined by the genetic algorithm based objective optimization method. The predicted results agree fairly well with the experimental value.

源语言英语
主期刊名Machinery, Materials Science and Engineering Applications
729-733
页数5
DOI
出版状态已出版 - 2012
活动2012 2nd International Conference on Machinery, Materials Science and Engineering Applications, MMSE 2012 - Wuhan, 中国
期限: 16 6月 201217 6月 2012

出版系列

姓名Advanced Materials Research
510
ISSN(印刷版)1022-6680

会议

会议2012 2nd International Conference on Machinery, Materials Science and Engineering Applications, MMSE 2012
国家/地区中国
Wuhan
时期16/06/1217/06/12

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