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首页> 外文期刊>Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing >Fretting wear study on Ti-Ca-P biocomposite in dry and simulated body fluid
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Fretting wear study on Ti-Ca-P biocomposite in dry and simulated body fluid

机译：干燥和模拟体液中Ti-Ca-P生物复合材料的微动磨损研究

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摘要

In the present work, powder metallurgy processing was used to synthesize a titanium rich composite containing in situ formed bioactive calcium-phosphatic phases. The potential application of such a composite includes load-bearing implants. In view of the importance of friction and wear in biomedical applications, the present work was taken up to investigate the friction and wear properties of such Ti-Ca-P composite at fretting contact against bearing steel in simulated body fluid (SBF) environment. A comparison was also made with fretting behaviour in dry conditions. Tribological experiments were carried out on a biocomposite against bearing steel at different loads (2, 5 and 10 N) for 10,000 cycles with displacement stroke set to 80 μm and at 10 Hz frequency using a low amplitude reciprocatory fretting wear tester. In addition to reporting the measured tribological data, a major focus of the work was in understanding dominant wear mechanisms under dry ambient and physiological environment.
机译：在本工作中，采用粉末冶金工艺合成了富含钛的复合材料，该复合材料含有原位形成的生物活性钙-磷酸相。这种复合材料的潜在应用包括承重植入物。鉴于摩擦和磨损在生物医学应用中的重要性，目前的工作是研究这种Ti-Ca-P复合材料在模拟体液（SBF）环境中与轴承钢发生微动接触时的摩擦和磨损性能。还对干燥条件下的微动行为进行了比较。使用低振幅往复式微动磨损测试仪，对生物复合材料在不同载荷（2、5和10 N）下对轴承钢进行了10,000次循环的摩擦学实验，位移冲程设为80μm，频率为10 Hz。除了报告测得的摩擦学数据外，这项工作的主要重点还在于了解干燥环境和生理环境下的主要磨损机理。

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