Effects of laser shock processing on mechanical properties and micro-structure of ANSI 304 austenitic stainless steel
作者： K.Y. Luo , J.Z. Lu , Y.K. Zhang , J.Z. Zhou , L.F. Zhang
DOI: 10.1016/J.MSEA.2011.03.041
关键词:
摘要: Abstract The aim of this article is to address the effects a single laser shock processing (LSP) impact on nano-hardness, elastic modulus, residual stress and phase transformation ANSI 304 austenitic stainless steel. Residual distribution LSP-shocked region determined by X-ray diffraction (XRD) with sin 2 ψ method, micro-structural features in near-surface layer are characterized using cross-sectional optical microscopy (OM), transmission electron (TEM). By comparing untreated samples, LSP can clearly improve region. underlying enhancement mechanisms modulus steel also revealed. These studies may provide some important insights into surface modification for metal materials.
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