Plain fatigue and fretting fatigue behaviour of plasma nitrided Ti-6Al-4V

被引：22
|
作者：
Rajasekaran, B. [1 ]
Raman, S. Ganesh Sundara [1 ]
机构：
[1] Indian Inst Technol, Dept Met & Mat Engg, Madras 600036, Tamil Nadu, India
来源：
MATERIALS LETTERS | 2008年 / 62卷 / 15期
关键词：
fatigue; fretting fatigue; adhesion; plasma nitriding; residual stress; friction force;
D O I：
10.1016/j.matlet.2007.12.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fatigue tests with and without fretting against unnitrided fretting pads were conducted on unnitrided and plasma nitrided Ti-6Al-4V samples. Plasma nitrided samples exhibited higher surface hardness, higher surface compressive residual stress, lower surface roughness and reduced friction force compared with the unnitrided specimens. Plasma nitriding enhanced the lives of Ti-6Al-4V specimens under both plain fatigue and fretting fatigue loadings. This was explained in terms of the differences in surface hardness, surface residual stress, surface roughness and friction force between the unnitrided and nitrided samples. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：2473 / 2475
页数：3
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