Transient flow behaviour in a near alpha titanium alloy Timetal 834 in the dynamic strain aging regime

被引：17
|
作者：
Prasad, Kartik [1 ]
Kamat, S. V. [1 ]
机构：
[1] Def Met Res Lab, Hyderabad 500058, Andhra Pradesh, India
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 490卷 / 1-2期
关键词：
Timetal; 834; dynamic strain aging; stress relaxation; transient flow behaviour;
D O I：
10.1016/j.msea.2008.01.005
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The transient flow behaviour in Timetal 834 titanium alloy was studied in the temperature range between 400 degrees C and 475 degrees C by means of stress relaxation and reloading during tensile testing at a strain rate of 6.67 x 10(-4) s(-1). The increment in flow stress during reloading (Delta sigma(f)) and the decrement in flow stress during stress relaxation (Delta sigma(r)) were measured at different strains at each temperature. The observation of maximum value of Delta sigma(f) and Delta sigma(r), normalized with respect to the Young's modulus at the corresponding temperature, confirmed that the maximum dynamic strain aging (DSA) effect in this alloy occurs at 450 degrees C. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：477 / 480
页数：4
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