High temperature deformation behavior of Ti-7333 titanium alloy and its flow stress model

被引：2

作者：

Fan, Jiangkun ^{[1
]}

Kou, Hongchao ^{[1
]}

Lai, Minjie ^{[1
]}

Tang, Bin ^{[1
]}

Chang, Hui ^{[1
]}

Li, Jinshan ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China

来源：

MATERIALS PROCESSING TECHNOLOGY II, PTS 1-4 | 2012年 / 538-541卷

关键词：

Ti-7333; Near beta titanium alloy; Hot deformation; Activation energy; Flow stress model; MICROSTRUCTURAL EVOLUTION; BETA;

D O I：

10.4028/www.scientific.net/AMR.538-541.945

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of processing parameters on deformation behavior of a new near 13 titanium alloy were investigated by using compression tests. The experiments were carried out in the Gleeble-3800 thermal and mechanical simulator in the temperature range of 770-970 degrees C and strain rate range of 10(-3)-10s(-1), and height direction reduction of 70%. The results show that the flow stress of Ti-7333 titanium alloy increases obviously with the strain and reaches a peak, then decreases to a steady value. The steady and peak stress significantly decreases with the increase of deformation temperature and decrease of strain rate. The flow stress model of Ti-7333 titanium alloy during high temperature deformation was established by using the regression method. The average relative difference between the calculated and experimental flow stress is 6.33%. The flow stress model can efficiently predict the deformation behavior of Ti-7333 titanium alloy during high temperature deformation.

引用

页码：945 / 950

页数：6

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