Effects of initial forming temperature on primary alpha evolution during radial-axial ring rolling for TA15 titanium alloy

被引：4

作者：

Zhu, Shuai ^{[1
,2
]}

Yang, He ^{[1
]}

Guo, Linggang ^{[1
,2
]}

Di, Weijia ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China

[2] Chongqing Univ Technol, Minist Educ, Key Lab Adv Mfg Technol Automobile Parts, Chongqing, Peoples R China

来源：

11TH INTERNATIONAL CONFERENCE ON TECHNOLOGY OF PLASTICITY, ICTP 2014 | 2014年 / 81卷

关键词：

Radial-axial ring rolling; Titanium alloy; Finite element method; MICROSTRUCTURE EVOLUTION; HEAT-TREATMENT; TI-6AL-4V;

D O I：

10.1016/j.proeng.2014.09.163

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The volume fraction of primary alpha, which is the key microstructure parameter and determines the mechanical properties of the titanium alloy ring, is strongly affected by the initial forming temperature in the radial-axial ring rolling of titanium alloy. In this paper, a primary alpha evolution model is implemented into the 3D-FE model of radial-axial ring rolling process to model the primary alpha evolution of the TA15 titanium alloy ring. Both transferring and deforming stages of the process are considered in the FE model. By FE simulations, it is found that the volume fraction of primary alpha of the rolled ring is mainly determined by the transferring stage, and decreases with the increase of initial forming temperature. Consequently, the reasonable range of the initial forming temperature has been determined for the radial-axial ring rolling of TA15 titanium alloy. (C) 2014 Published by Elsevier Ltd.

引用

页码：274 / 279

页数：6

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