Comparison between Conventional Shot Peening (SP) and Surface Mechanical Attrition Treatment (SMAT) on a Titanium Alloy

Abstract : In this paper the residual stress states induced by conventional shot peening (SP) and surface mechanical attrition treatment (SMAT) are compared. The treated part correspond to plates made of a titanium alloy. Different intensities of these two mechanical treatments are first considered: their influence on the surface characteristics (roughness, hardness...) is studied. These experimental data are then used to develop a model for the residual stress profiles with dimensional analysis, Experimental and analytical approaches are then discussed.
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Donaro Gallitelli, Delphine Retraint, Emmanuelle Rouhaud. Comparison between Conventional Shot Peening (SP) and Surface Mechanical Attrition Treatment (SMAT) on a Titanium Alloy. Advanced Materials Research, Trans Tech Publications, 2014, 996, pp.964-968. ⟨10.4028/www.scientific.net/AMR.996.964⟩. ⟨hal-02276434⟩

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