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
收藏
页码：945 / 950
页数：6
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