S30432 steel was treated by different shot peening (SP) processes, including single SP, dual SP, and triple SP. Dry sliding tribological behavior and corrosion resistance of S30432 steel after different SP processes were studied by using reciprocating friction/wear tester (Al₂O₃ as the counterpart) and electrochemical work station, respectively. The results showed that the steady-state friction coefficient could slightly decrease after triple SP process under 5 N; the low roughness value and hardened surface were responsible for it. Compared with the original S30432 steel, the wear resistance of all shot-peened samples was enhanced under the measured loads, which was mainly attributed to the high hardness of gradient hardening layers. Comparing to the as-received crystalline material, the local corrosion resistance of refined microstructure induced by dual SP and triple SP was enhanced. However, for single SP process, the corrosion resistance deteriorated, which was mainly attributed to the variation of surface roughness. It was concluded that the appropriate SP process could improve both wear and corrosion resistance.

S30432钢经过不同的喷丸（SP）工艺处理，包括单SP、双SP和三SP。采用往复式摩擦磨损试验机(Al ₂ O ₃作为对应）和电化学工作站，分别。结果表明，在5 N作用下，经过三次SP处理后，稳态摩擦系数略有下降；低粗糙度值和硬化表面是造成它的原因。与原始 S30432 钢相比，所有喷丸试样在测量载荷下的耐磨性均有所提高，这主要归功于梯度硬化层的高硬度。与原样的结晶材料相比，双 SP 和三重 SP 诱导的细化微观结构的局部耐腐蚀性得到增强。然而，对于单一的SP工艺，耐腐蚀性变差，这主要归因于表面粗糙度的变化。得出的结论是，适当的 SP 工艺可以提高耐磨性和耐腐蚀性。