Mathematical Modeling and Analysis of Wear Behavior of AlTiN Coating on Titanium Alloy (Ti-6Al-4V)
Mathematical Modeling and Analysis of Wear Behavior of AlTiN Coating on Titanium Alloy (Ti-6Al-4V)
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钛合金（Ti-6Al-4V）AlTiN涂层磨损行为的数学建模与分析
DOI：
10.1155/2021/1098605
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发表时间：
2021
影响因子：
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通讯作者：
P. Balasubramani
中科院分区：
文献类型：
--
作者：
P. Sivaprakasam;A. Kirubel;G. Elias;P. Maheandera Prabu;P. Balasubramani
研究了钛合金表面物理气相沉积(PVD)Altin涂层的磨损行为。以磨损质量损失(WML)和摩擦系数(COF)为响应参数，采用响应面方法(RSM)分析了载荷(A)、滑动速度(B)和滑动距离(C)等输入因素。统计分析表明，主要因素，即AC与纯二次项B2和C2的交互作用对WML的影响最大。然而，载荷、滑动速度以及AB和二次项A2的交互作用对COF有很大的影响。本工作试图进行经验建模来预测WML和COF的输出响应。采用基于期望度的优化技术来获得最小的WML和COF。磨痕的显微镜图像显示了可见的凹槽和划痕，证实磨粒磨损是伴随着粘着磨损的主要磨损机制。研究得出结论：Altin具有更好的耐磨性能，可用于生物医学应用的钛植入物涂层。结果表明，在载荷为15 N、滑动速度为0.5 m/S、滑动距离为500 m时，滑移速度和滑移速度最小。
In this study, the wear behavior of a physical vapor deposition (PVD) AlTiN coated on the titanium alloy was investigated. Response surface methodology (RSM) was used to analyze input factors, such as load (A), sliding speed (B), and sliding distance (C), while wear mass loss (WML) and coefficient of driction (COF) were considered as the response parameters. The statistical analysis shows that main factors, that is, interaction of AC and pure quadratic terms B2 and C2, have maximum influences on WML. However, COF was highly affected by load, sliding speed, and interaction of AB and quadratic term A2. The present work attempts to carry out empirical modeling to predict output response on WML and COF. Desirability-based optimization technique was employed to obtain minimum WML and COF. Microscopy images of the wear tracks reveal visible grooves and scratches that confirm abrasive wear to be the primary wear mechanism accompanied by adhesive wear. The investigation concluded that AlTiN has better wear resistance properties and can be used to coat titanium implants for biomedical application. The result shows that the minimum WML and COF have been found at applied load 15 N, sliding speed at 0.5 m/s, and sliding distance 500 m.