Influence of Ball Burnishing on the Electrochemical Corrosion and Dry Sliding Wear Characteristics of 316L Stainless Steel
摘要
The effect of ball burnishing on the corrosion and wear behavior of 316L stainless steel was investigated in this study. The as-received 316L stainless steel samples were burnished using different burnishing offsets of 0.05, 0.1, 0.15, and 0.2 mm. Surface roughness and microhardness were measured after ball burnishing. Dry sliding wear test was conducted to evaluate wear performance. It was observed that 0.2 mm burnishing offset exhibited best wear resistance due to higher hardness and wear rate was reduced by 26.67% compared to unburnished alloy. The 3-electrode corrosion cell using an electrochemical analyzer was used to find corrosion rate of the samples via the potentiodynamic polarization test. The results show that the burnishing has significantly impacted the corrosion performance of the alloy. Carrying the burnishing process at 0.05 mm offset exhibited best corrosion resistance, whose corrosion rate is reduced by three times compared to the unburnished alloy.