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利用等离子表面改性技术在Ti6Al4V合金基体上制备Mo渗镀复合改性层,考察改性层组织结构,利用微动摩擦学试验机并结合电化学噪声技术对比研究基材及改性层在0.5 mol/L NaCl溶液中的腐蚀-微动摩擦学行为,对腐蚀-摩擦过程中的噪声参数进行分析.结果表明:纯Mo改性层能够明显改善钛合金的耐磨和减摩特性;同时提高了合金在0.5 mol/L NaCl溶液中的自腐蚀电位及降低了腐蚀电流,改善了合金表面的腐蚀-摩擦学性能.
The surface of modified Ti6Al4V alloy was prepared by plasma surface modification. The microstructure of the modified layer was investigated. The micro-tribological tribometer and electrochemistry noise were used to compare the properties of the substrate and the modified layer. The results show that pure Mo modified layer can obviously improve the wear resistance and antifriction properties of titanium alloy, meanwhile, the corrosion and fretting tribological behavior in corrosion / The corrosion potential and the corrosion current of the alloy in 0.5 mol / L NaCl solution have been improved, and the corrosion-tribological properties of the alloy surface have been improved.