The effect of mixed mode I/III loading on the fracture toughness of Timetal 834 titanium alloy

被引：22
|
作者：
Rao, B. S. S. Chandra [1 ]
Srinivas, M. [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 / 476卷 / 1-2期
关键词：
Timetal 834 titanium alloy; mixed mode I/III fracture toughness; primary alpha;
D O I：
10.1016/j.msea.2007.05.059
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of mixed mode I/III loading on the fracture toughness of Timetal 834 titanium alloy plate was investigated. The fracture toughness of Timetal 834 alloy was found to remain more or less unchanged initially and subsequently increase with increasing mixed mode MR loading. Formation of quasi-cleavage facets at primary a grains was found to be the most important step in the fracture process. This coupled with the nature of the stress field ahead of the crack tip under mixed mode I/III loading was then used to explain fracture toughness behaviour with increasing mixed mode MU loading in Timetal 834 titanium alloy. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：162 / 168
页数：7
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