MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Residual Stress Relaxation in Shot Peened Surface Layer on TiB2/Al Composite under Applied Loading
Weizhi LuanChuanhai JiangVincent Ji
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2009 Volume 50 Issue 1 Pages 158-160

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Abstract

The residual stress relaxations in the shot peened surface layer on the TiB2/6351Al composite under static and cyclic loading were investigated. The results show that the compressive residual stresses were relaxed under applied tensile stresses. The relaxation of the residual stresses in the longitudinal direction is more important than the one in the transverse direction. Under cyclic loading, the fast relaxation of residual stresses occurred in the first few circles. The main reason of the residual stresses relaxations is the inhomogeneous local plastic deformation caused by the large number of the reinforcement particles in the matrix during applied loadings.

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© 2009 The Japan Institute of Metals and Materials
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