Effects of microstructure on fretting fatigue crack initiation behavior of Ti-6Al-4V

被引：43
|
作者：
Mall, S [1 ]
Namjoshi, SA
Porter, W
机构：
[1] USAF, Inst Technol, Dept Aeronaut & Astronaut, Wright Patterson AFB, OH 45433 USA
[2] Univ Dayton, Inst Res, Dayton, OH 45469 USA
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 383卷 / 02期
关键词：
fretting fatigue; microstructure; titanium alloy; crack initiation; crack propagation;
D O I：
10.1016/j.msea.2004.05.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Fretting fatigue crack initiation behaviour was investigated for its dependence on the microstructure of a alpha/beta titanium alloy, which ranged from homogeneous duplex to the fully transformed heterogeneous lamellar texture by increasing the Widmanstatten colony size. When the microstructure changed from homogeneous duplex to the fully transformed heterogeneous lamellar texture, the resistance to fretting fatigue crack initiation decreased. And, this was just the opposite of short and long crack behaviour where the resistance to crack growth increases when the microstructure changes from homogeneous duplex to the fully transformed heterogeneous lamellar structure. Published by Elsevier B.V.
引用
收藏
页码：334 / 340
页数：7
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