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总览 评价 杨诗婷 ， 邢永明 * ， 姜爱峰 ， 郎风超 ， 李继军 （ 内蒙古工业大学理学院； ） 摘要： 采用金属材料表面纳米化试验机对316L不锈钢进行表面纳米化处理，处理前后试样在干摩擦条件下进行往复滑动摩擦试验，研究了表面纳米化对316L不锈钢干摩擦磨
杨诗婷， 邢永明*， 姜爱峰， 郎风超， 李继军
（
内蒙古工业大学理学院； ）
摘要：
采用金属材料表面纳米化试验机对316L不锈钢进行表面纳米化处理，处理前后试样在干摩擦条件下进行往复滑动摩擦试验，研究了表面纳米化对316L不锈钢干摩擦磨损性能的影响。采用材料表面性能综合测试仪测量了材料的磨损量和摩擦系数，评价了材料的摩擦磨损性能；利用扫描电子显微镜观察了磨痕的表面形貌，分析了材料的磨损机理。结果表明：与未纳米化试样相比，纳米化处理后试样磨损量显著降低，干摩擦系数普遍降低，且随纳米化处理时间的增大而减小；未纳米化试样呈现典型的粘着磨损和磨粒磨损机制，而纳米化处理后试样则主要呈现疲劳磨损和磨粒磨损机制，且纳米化处理时间较短时以疲劳磨损为主，处理时间较长时以磨粒磨损为主。
关键词：
表面纳米化；316L不锈钢；干摩擦；磨损量；摩擦系数；磨损机理
YANG Shiting， XING Yongming*， JIANG Aifeng， LANG Fengchao， LI Jijun
（
school of science,inner monoglia university of technology； ）
Abstract：
The experiment of surface nanocrystallization 316L stainless steel was carried out by surface nano-crystallization testing machine. The sliding wear tests of untreated sample and surface nanocrystallization samples were conducted, the dry friction and wear properties and hardness of 316L stainless steel by surface nanocrystallization were investigated. Wear and friction coefficient were measured by the surface performance tester to investigated the friction and wear properties of materials. The wear surface morphologies of untreated and surface nanocrystallization samples were analyzed by means of scanning electron microscopy. Meanwhile , wear mechanisms were discussed. Results show that the wear mass loss and dry friction coefficient of the sample can be significantly reduced by surface nanocrystallization. And they generally decreases with the increase of nano time. SEM observation shows that the main wear mechanism of untreated sample is adhesive wear and abrasive wear, but that of surface nanocrystallization samples is mainly fatigue wear and abrasive wear. It is mainly fatigue wear as nano time is shorter, and it is mainly abrasive wear as nano time is longer.
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