Hot Compression Deformation Behavior and Processing Map of TA15 alloy

被引：0

作者：

Xu Meng ^{[1
]}

Jia Weiju ^{[2
]}

Zhang Zhihao ^{[1
]}

Xie Jianxin ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Beijing 100083, Peoples R China

[2] Northwest Inst Nonferrous Met Res, Xian 710016, Shaanxi, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2017年 / 46卷 / 09期

关键词：

TA15; alloy; thermal simulation experiment; flow stress; dynamic recrystallization; processing map; TITANIUM-ALLOY; THERMAL DEFORMATION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Plastic deformation characteristics and hot processing conditions are important bases for the selection of processing parameters of extrusion and rolling of titanium alloy. The compressive deformation behavior and microstructure of TA15 alloy were investigated in the temperature range of 850 similar to 1050 degrees C and strain rate range of 0.01-20 s(-1). The constitutive equation of TA15 alloy was derived through Arrhenius hyperbolic sine function. Based on dynamic materials modeling (DMM), the processing map of TA15 alloy was established for strain of 0.1 similar to 0.7. The results show that alpha phase in the alloy gradually transforms to beta phase with the increase of deformation temperature. The transform extent of alpha phase to beta phase gradually decreases with the increase of the strain rate. According to the processing map, the two hot processing safety areas of the alloy are determined as: (1) deformation temperature 950 similar to 1050 degrees C, strain rate 0.01 similar to 0.37 s(-1); (2) deformation temperature 875 similar to 950 degrees C, strain rate 1.65 similar to 13.5 s(-1).

引用

页码：2708 / 2713

页数：6

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