MATEC Web Conf.
Volume 165, 201812th International Fatigue Congress (FATIGUE 2018)
|Number of page(s)||6|
|Section||Residual Stresses in Fatigue|
|Published online||25 May 2018|
Effect of surface compressive residual stress introduced by surface treatment on fatigue properties of metallic material
Hiroshima University, Department of Mechanical Science and Engineering, 1-4-1 Kagamiyama Higashi-hiroshima Hiroshima, Japan
2 Electric Power Development Co.,Ltd, Chigasaki Kanagawa, Japan
This study considers shakedown in evaluating the fatigue limit of metals with compressive residual stress at the surface. We begin by applying tension-compression fatigue tests to ASTM CA6NM under conditions of controlled load and displacement to obtain fatigue limit diagram in compressive mean stress. The results imply that shakedown occurs under the condition of controlled displacement, therefore, shakedown should be considered when evaluating the fatigue limit of metals with compressive residual stress at the surface.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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