In this study, the effects of local treatment temperature of ultrasonic nanocrystal surface modification (UNSM) on tribological behavior and corrosion resistance of stainless steel 316L produced by selective laser melting (SLM) were investigated. The as-printed samples were treated by UNSM at room and high temperatures (RT and HTs) and their strength, tribological behavior and corrosion resistance were compared and discussed. Dry friction coefficient of the UNSM-treated at RT and HT samples was reduced from 0.73 to 0.56 and 0.67 to 0.52, while the dry sliding wear resistance at RT and HT was enhanced from 7.25 × 10⁻⁸ to 5.8 × 10⁻⁸ and 7.01 × 10⁻⁸ to 5.2 × 10⁻⁸ mm³/Nmm, respectively. Increase in local treatment temperature of UNSM resulted a lower friction coefficient and higher wear rate compared to that of the UNSM at RT.

在这项研究中，研究了超声纳米晶体表面改性（UNSM）的局部处理温度对通过选择性激光熔融（SLM）生产的316L不锈钢的摩擦学行为和耐蚀性的影响。印刷后的样品在室温和高温（RT和HT）下经过UNSM处理，并对它们的强度，摩擦学行为和耐腐蚀性进行了比较和讨论。经过UNSM处理的RT和HT样品的干摩擦系数从0.73降低到0.56和0.67降低到0.52，而RT和HT的干滑动耐磨性从7.25×10 ^-8增强到5.8×10 ^-8和7.01 ×10 ^-8至5.2×10 ^-8  mm ³/ Nmm。与RT上的UNSM相比，UNSM的局部处理温度的升高导致较低的摩擦系数和较高的磨损率。