Article Dans Une Revue Mechanics, Materials Science & Engineering MMSE Journal. Open Access Année : 2017

Effect of Laser Shock Peening Without Coating on Surface Morphology and Mechanical Properties of Nickel-200

Résumé

This paper delineates the after effects of low energy Laser shock peening without coating on Nickel-200 specimen. Comparative study of X-Ray Diffraction analysis of the treated specimen with untreated specimen suggests the presence of compressive residual stress and grain refinement. The residual stress analysis was carried out using the sin 2 Ψ method of X-ray Diffraction. The results of which indicate compressive residual stress values have increased. The AFM results tell us that there is a considerable increase in the surface roughness after the laser peening process. There is a grain refinement which is also supported by AFM, XRD data. The hardness profile of the material was increased by a substantial amount. The crystalline size and the micro-strain have been calculated for peened and unpeened samples using the Scherrer's equation from the X-ray diffraction data.

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hal-01504780 , version 1 (10-04-2017)

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Aniket Kulkarni, Siddarth Chettri, S Prabhakaran, S Kalainathan. Effect of Laser Shock Peening Without Coating on Surface Morphology and Mechanical Properties of Nickel-200 . Mechanics, Materials Science & Engineering MMSE Journal. Open Access, 2017, 9, ⟨10.2412/mmse.55.5.304⟩. ⟨hal-01504780⟩
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