Surface Properties and Corrosion Behavior of Metals after Shot Peening

Dear Colleagues,

It has long been established that the surface is the first layer of defence. Enhancing the surface properties and performance of metals is a cost-effective method via which to extend the durability and thus the lifespan of the critical part and element. As one of the superior candidates, shot peening has long been employed to enhance the surface properties of metals and alloys, such as their fatigue and wear resistance, by introducing strain hardening, a refined microstructure and compressive residual stress. This technique is also characterized by inexpensiveness, effectiveness and excellent applicability in the processing of complex geometric parts.

In the majority of cases, shot peening unconsciously employs tailored parameters in order to enhance the surface properties, particularly the corrosion resistance; this is because the concomitant higher roughness and micro non-propagating cracks are generally regarded as unfavorable factors. Furthermore, research focused on the responses of shot-peened components to special working conditions, such as erosion–corrosion, jet slurry corrosive wear and other multiple loading cases, and the underlying mechanisms is in urgent need of clarification or consensus.

Based on these considerations, this Special Issue aims to elucidate the recent research findings regarding the surface properties and corrosion behaviors of metals when applying shot peening treatment. The scope of this Special Issue therefore includes, but is not limited to, the effects of shot peening, laser shock peening, surface mechanical attrition and water jet peening on the wear, fatigue, friction, corrosion, thermal stability, surface integrity, residual stress, and microstructure of metallic materials.

Dr. Chengxi Wang
Dr. Zhou Wang
Guest Editors

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• shot peening
• laser shock peening
• surface mechanical attrition treatment
• corrosion
• fatigue
• wear
• surface integrity
• residual stress
• microstructure