Gencalp Irizalp S.Saklakoglu N.Akman E.Demir A.2024-07-222024-07-22201400303992http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/17151The aim of this paper is to investigate effects of single and double shot Nd:YAG laser shock processing (LSP) on residual stress, micro-hardness and tensile properties of 6061-T6 aluminum alloy. The X-ray diffraction technique was used to measure surface residual stress in LSP-treated 6061-T6 samples. The magnitude and directional dependence of the surface residual stress after single shot and double shot LSP were investigated with the sin2 Ψ method. The results show that laser shock processing can significantly increase surface compressive residual stress. In addition, micro-hardness of the LSP-treated sample was measured using a Vickers diamond indenter depending on the depth. The tensile tests of the single shot and double shot LSP-treated and untreated samples were carried out by the Schimadzu tensile testing machine having a video extensometer. Experimental results show that the values of micro-hardness, tensile strength and uniform elongation increase by LSP. © 2013 Elsevier Ltd. All rights reserved.EnglishCerium alloysHardnessMaterials testing apparatusResidual stressesTensile strengthTensile testingX ray diffraction6061-T6 aluminum alloyCompressive residual stressDirectional dependenceInvestigate effectsLaser shock processingSurface residual stressTensile testing machinesX-ray diffraction techniquesNeodymium lasersArticle10.1016/j.optlastec.2013.08.011