Estimation of the Yield Stress of Stainless Steel from the Vickers Hardness Taking Account of the Residual Stress
Estimation of the Yield Stress of Stainless Steel from the Vickers Hardness Taking Account of the Residual Stress作者机构：Department of Nanomechanics Graduate School of Engineering Tohoku University Sendai Japan.
出 版 物：《Journal of Surface Engineered Materials and Advanced Technology》 (表面工程材料与先进技术期刊（英文）)
年 卷 期：2013年第3卷第4期
页 面：262-268页
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
主 题：Peening Yield Stress Hardness Residual Stress
摘 要：In this paper, a method that uses the Vickers hardness to estimate the yield stress of a metallic material with taking account of residual stress is proposed. Although the yield stress of bulk metal can be evaluated by a tensile test, it cannot be applied to local yield stress varied by surface modification methods, such as the peening technique which introduces high compressive residual stress at the surface. Therefore, to evaluate the local yield stress employing a relatively easy way, the Vickers hardness test was conducted in this paper. Since the Vickers hardness depends on both the residual stress and the yield stress, the relationship between the residual stress and the Vickers hardness was experimentally examined. It was concluded that the yield stress of the surface treated by several peening techniques can be estimated from the Vickers hardness once this has been corrected for residual stress.
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