Journal
MATERIALS LETTERS
Volume 60, Issue 17-18, Pages 2222-2226Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2005.12.115
Keywords
residual stress; fretting fatigue; titanium alloy
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This study investigated the complete history of residual stress evolution in a stress-free titanium alloy, Ti-6Al-4V under fretting fatigue loading condition. Compressive residual stress developed in the contact region due to the local plastic deformation between contacting bodies. The compressive residual stress then increased initially with increasing number of fretting fatigue cycles reaching to a maximum value, and then it decreased (or relaxed) with further cycling. This relaxation of compressive residual stress was due to the delamination and detachment of flake-like (wear sheet) material in the fretted region. (c) 2006 Elsevier B.V. All rights reserved.
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