Laser peening without protective coating (LPwC) is an advanced mechanical surface modification method being used for a wide range of metallic materials for improving their fatigue and corrosion properties. The literature review of LPwC for the last two decades is systematically presented. The mechanism and experimental parameters of LPwC are described comprehensively. The major factors that influence the fatigue or corrosion properties, for example, compressive residual stress (CRS) and surface roughness, are analyzed with great care using the available data from the literature. A list of suggestions for future work in LPwC is given at the end.
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Karthik et al. (2016) studied this question.
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