Abstract Commercially pure titanium and titanium alloys are often preferred in biomedical applications due to their high biocompatibility behavior. However, the inadequate wear, fatigue and corrosion resistance of titanium alloys limit their use as a biomaterial in the human body. Furthermore, these alloys may contain such as aluminum and vanadium elements that can damage the nervous system. The aim of this in vitro study was to evaluate the influence of lubrication conditions on the two-body wear behavior of pure titanium, Ti-2.5Si-5Zr, Ti-5Si-5Zr, and Ti-6Al-4V using dual-axis computer-controlled wear simulator device. The mean wear volume loss of all test specimens after the two-body wear test procedures were determined to use a non-contact 3D profilometer. The alloys hardness and microstructures were evaluated using the Vickers indention method, scanning electron microscopy (SEM), X-ray spectroscopy (EDS), and X-ray diffraction (XRD) analysis. The hardness of Ti-6Al-4V titanium alloy material was significantly greater than the other alloy materials and cp-Ti. The mean wear volume loss of Ti-5Si-5Zr test specimens was lower than the other test group specimens irrespective of lubrication conditions. It was concluded, the two-body wear resistance of the alloy formed with the addition of silica to the pure titanium is increased after both wear test procedures. However, for the test materials in this study considered, correlations between the two-body wear resistance and hardness were found to be insignificant.

中文翻译：

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润滑条件对生物医学应用钛合金双体磨损行为和硬度的影响

摘要 商业纯钛和钛合金由于其高生物相容性行为在生物医学应用中通常是首选。然而，钛合金的磨损、疲劳和耐腐蚀性不足，限制了它们作为人体生物材料的使用。此外，这些合金可能含有铝和钒等元素，会损害神经系统。这项体外研究的目的是使用双轴计算机评估润滑条件对纯钛、Ti-2.5Si-5Zr、Ti-5Si-5Zr 和 Ti-6Al-4V 两体磨损行为的影响-受控磨损模拟器装置。使用非接触式 3D 轮廓仪确定在两体磨损试验程序后所有试样的平均磨损量损失。使用维氏压痕法、扫描电子显微镜 (SEM)、X 射线光谱 (EDS) 和 X 射线衍射 (XRD) 分析评估合金的硬度和微观结构。Ti-6Al-4V钛合金材料的硬度明显高于其他合金材料和cp-Ti。无论润滑条件如何，Ti-5Si-5Zr 试样的平均磨损量损失都低于其他试样组。得出的结论是，在两种磨损试验程序后，通过向纯钛中添加二氧化硅形成的合金的双体耐磨性增加。然而，对于本研究中考虑的测试材料，发现两体耐磨性和硬度之间的相关性不显着。和 X 射线衍射 (XRD) 分析。Ti-6Al-4V钛合金材料的硬度明显高于其他合金材料和cp-Ti。无论润滑条件如何，Ti-5Si-5Zr 试样的平均磨损量损失都低于其他试样组。得出的结论是，在两种磨损试验程序后，通过向纯钛中添加二氧化硅形成的合金的双体耐磨性增加。然而，对于本研究中考虑的测试材料，发现两体耐磨性和硬度之间的相关性不显着。和 X 射线衍射 (XRD) 分析。Ti-6Al-4V钛合金材料的硬度明显高于其他合金材料和cp-Ti。无论润滑条件如何，Ti-5Si-5Zr 试样的平均磨损量损失都低于其他试样组。得出的结论是，在两种磨损试验程序后，通过向纯钛中添加二氧化硅形成的合金的双体耐磨性增加。然而，对于本研究中考虑的测试材料，发现两体耐磨性和硬度之间的相关性不显着。无论润滑条件如何，Ti-5Si-5Zr 试样的平均磨损量损失都低于其他试样组。得出的结论是，在两种磨损试验程序后，通过向纯钛中添加二氧化硅形成的合金的双体耐磨性增加。然而，对于本研究中考虑的测试材料，发现两体耐磨性和硬度之间的相关性不显着。无论润滑条件如何，Ti-5Si-5Zr 试样的平均磨损量损失都低于其他试样组。得出的结论是，在两种磨损试验程序后，通过向纯钛中添加二氧化硅形成的合金的双体耐磨性增加。然而，对于本研究中考虑的测试材料，发现两体耐磨性和硬度之间的相关性不显着。