@article{oai:niigata-u.repo.nii.ac.jp:00002924, author = {秋庭, 義明 and 田中, 啓介 and 鈴木, 賢治 and 柳瀬, 悦也 and 西尾, 光司 and 楠見, 之博 and 尾角, 英毅 and 新井, 和夫}, issue = {7}, journal = {材料, 材料}, month = {Jul}, note = {The in-depth distribution of residual stresses in shot-peened steels was measured by using high energy X-rays from a synchrotron radiation source. The relation between the 2θ and sin^2Ψ was obtained with the side-inclination method (Ψ diffractometer). The distribution of residual stresses was first evaluated by the nonlinearity of the sin^2Ψ diagram by a simplex method. The estimated stress agreed with the distribution determined through the sin^2Ψ method by using Cr-Kα radiation combined with the conventional surface removal method. A new method was proposed to estimate the stress value of the distributed residual stress. The new method was a combination of the side-inclination method and the iso-inclination method (ω diffractometer) to maintain the penetration depth constant. The sin^2Ψ diagram could be approximated by the linear relationship. The evaluated stress distribution agreed well with the distribution obtained by the surface removal method.}, pages = {764--769}, title = {放射光によるショットピーニング材の残留応力分布評価}, volume = {52}, year = {2003} }