TC20钛合金生物摩擦学性能研究

发布时间：2018-04-12 06:32

本文选题：TC钛合金 + 生物摩擦学　；参考：《钛工业进展》2016年06期

【摘要】：通过往复摩擦试验与电化学腐蚀试验,对新型人工关节替代材料TC20钛合金的相关性能展开研究,合理评价其作为关节替代材料的适用性及可靠性。研究结果表明,TC20钛合金在干摩擦条件下摩擦系数达到稳定的时间最长,且稳定后摩擦系数受外加载荷的影响最大;在小牛血清溶液中的摩擦系数最小,稳定后保持在0.33左右波动;干摩擦条件下的磨损最为剧烈,磨痕主要以犁沟形貌为主,磨损机理主要以粘着磨损及磨粒磨损为主,在较大载荷作用下开始出现疲劳磨损形貌;溶液中的磨损主要以粘着磨损为主,相同法向载荷下,生理盐水中的磨损更为剧烈;另外,TC20钛合金在两种溶液中的初始耐蚀性相差不大,但在生理盐水中,其表面能够在短时间内形成一层可有效保护基体的氧化膜。
[Abstract]:Through reciprocating friction test and electrochemical corrosion test, the correlation of TC20 titanium alloy, a new artificial joint substitute material, was studied, and its applicability and reliability as joint substitute material was evaluated reasonably.The results show that the friction coefficient of TC20 titanium alloy is the longest under dry friction condition, and the friction coefficient of TC20 alloy is affected by the applied load most, and the friction coefficient in calf serum solution is the smallest.Under dry friction condition, the wear is the most intense, the wear mark is mainly ploughing, the wear mechanism is mainly adhesive wear and abrasive wear, and the fatigue wear appearance begins to appear under the action of large load.The wear in solution was mainly adhesive wear, and the wear in normal saline was more severe under the same normal load, in addition, the initial corrosion resistance of TC20 titanium alloy in both solutions was not different, but in normal saline,The surface can form a layer of oxide film which can protect the substrate in a short time.
【作者单位】：江苏省徐州技师学院;洛阳船舶材料研究所;中国矿业大学;
【基金】：江苏省徐州市科技计划项目(XC13A016)
【分类号】：TG146.23

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