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采用等离子合金化技术在Ti-5Zr-3Sn-5Mo-15Nb(TLM)表面制备含钼改性层,对改性层组织、成分分布和显微硬度进行分析,并测量去离子水在渗钼试样表面的接触角,同时研究在模拟人工体液中改性层的摩擦磨损行为。结果显示:所制备的钼改性层均匀致密,厚度约为12μm,主要由Mo相组成。与TLM基体相比,渗钼后试样表面硬度显著增加。由于改性后Mo合金层的形成和表面粗糙度增加,使接触角减小,进而提高了表面润湿性。钼合金化后的TLM具有较低的摩擦系数,耐磨能力较未处理的合金提高约50倍,表现出良好的耐摩擦磨损性能。
Molybdenum modified layer was prepared on the surface of Ti-5Zr-3Sn-5Mo-15Nb (TLM) by plasma alloying. The microstructure, composition distribution and microhardness of the modified layer were analyzed. Like surface contact angle, and at the same time to study the friction and wear behavior of the modified layer in simulated artificial body fluids. The results show that the prepared molybdenum modified layer is uniform and compact with a thickness of about 12 μm and is mainly composed of Mo phase. Compared with the TLM matrix, the surface hardness of samples after infiltration of molybdenum significantly increased. As the modified Mo alloy layer formation and surface roughness increases, the contact angle decreases, thereby increasing the surface wettability. The molybdenum alloying TLM has a lower coefficient of friction, wear resistance than untreated alloy increased about 50 times, showing good wear resistance.