Abstract

The wear resistance of a plate–screw tribo pair used to fix bone fractures was investigated using the pin-on-plate configuration under conditions of dry friction and friction in Ringer’s solution. The nitrided and oxynitrided plates of Ti–6Al–4V titanium alloy in friction pairs with Fe–18Cr–10Ni–1Ti stainless steel were used. It was determined that under dry friction conditions, regardless of load, the nitrided Ti–6Al–4V titanium alloy provides a lower friction coefficient than the oxynitrided one; friction is implemented according to the adhesive wear mechanism. The use of Ringer’s solution during friction tests leads to an adhesive–oxidative wear mechanism that decreases the friction coefficient in friction pairs of nitrided (oxynitrided) Ti–6Al–4V titanium alloy–Fe–18Cr–10Ni–1Ti stainless steel. In addition, the oxidative portion in the wear mechanism for an oxynitrided surface is greater, which decreases the adhesive wear in such a friction pair.

中文翻译：

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氧氮化对Ti-6Al-4V钛合金减摩性能的影响

摘要

在干摩擦和在林格氏溶液中的摩擦条件下，采用销对板配置研究了用于固定骨折的板螺钉式摩擦摩擦副的耐磨性。使用与Fe–18Cr–10Ni–1Ti不锈钢摩擦对的Ti–6Al–4V钛合金的氮化和氧氮化板。可以确定，在干摩擦条件下，无论负载如何，氮化的Ti-6Al-4V钛合金所提供的摩擦系数都比氧氮化的更低。根据粘合剂的磨损机理来实现摩擦。在摩擦测试中使用林格氏溶液会导致粘合剂-氧化磨损机制，从而降低氮化（氧氮化）Ti-6Al-4V钛合金-Fe-18Cr-10Ni-1Ti不锈钢的摩擦副的摩擦系数。此外，