Effect of laser impacts on the fatigue properties of DD6 alloy

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• 作者：Yingwu Fang ; ^{fangyw72@126.com" class="auth_mail" title="E-mail the corresponding author} ; Shanghong Zhao ; Liwei Yang ; Yi Wang
• 关键词：Residual stress ; Laser impact ; Fatigue property ; DD6 alloy
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：127
• 期：23
• 页码：11094-11101
• 全文大小：1917 K

文摘

LS-DYNA/ANSYS is employed to compute the residual stresses of [001] orientation at 980 °C by laser impacts, the residual stresses fields are described with four impacts, and impact experiments and structure observation are also executed. Results showed that the best compressive residual stress was achieved after three impacts, and the observed results were close to the simulated values by comparing the change of phase structure and microstructure before and after laser impacts.