ビッカース硬さ測定による残留応力の評価 : 弾性応力とビッカース硬さの相関

概要

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The relations between elastic stresses and Vickers microhardness were investigated to establish the method for evaluating the residual stress from hardness variations. The results obtained are as follows : (1) The hardness decreases linearly with the tensile stresses and increases linearly with the compressive stresses. The decrease rate of hardness by tensile stresses is larger than the increase rate of hardness by compressive stresses. (2) When the elastic stresses are applied to the specimens that the residual stresses were induced, the above-mentioned relations is realized between the applied stresses and hardness. (3) The evaluated values of residual stress by the above-mentioned method correspond to the residual stresses in layer closely adjacent to machined surface.
公益社団法人精密工学会の論文
1990-09-05