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中文摘要：
采用液压伺服微动试验机，在模拟体液中试验研究了430℃渗氮、430℃氮碳共渗与500℃渗碳等3种表面改性工艺对医用奥氏体不锈钢316LVM微动腐蚀磨损性能的影响．结果表明，3种工艺均可在奥氏体不锈钢表面形成扩展奥氏体相“S相”，明显地提高基体硬度和弹性模量，进而改善其微动腐蚀磨损性能．在本文试验条件下，430℃氮碳共渗样品的耐微动腐蚀磨损性能最好，是医用奥氏体不锈钢316LVM抗微动磨损性能最优的表面改性工艺．
英文摘要：
The effect of the surface treatment on the fretting wear behavior of 316LVM austenitic stainless steel was investigated in the Ringer＇s solution by a Servo Hydraulic Dynamic Test machine. Three kinds of surface treatments were used in the experiments, namely low - temperature plasma nitriding at 430℃, carbonitriding at 430℃, and carburising at 500 ℃, respectively. The experimental results indicated that all the three treatments created a layer of ＂S＂ phase on the sample surface, which effectively improved the hardness and elastic modulus of 316LVM and further enhanced its anti -corrosion and anti -wear properties. The 316LVM nitrided at 430℃ showed the similar friction behavior as that carbonitrided at 430℃. Even the 316LVM carburised at 500 ℃ exhibited the lowest friction coefficient; the low - temperature plasma carbonitrided at 430℃ was the best surface treatment of three against the fretting wear of medical grade 316LVM austenitic stainless steels in this experiment.
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