In this study, it was targeted to enhance the tribological and thermal properties of Ti6Al4V alloys, which were manufactured with three different build orientations and hatch spacing by using the selective laser melting (SLM) method and a traditional method (casting). In addition, the surfaces of the samples produced by these two methods were coated with the TiAlN thin film by using the cathodic arc physical vapor deposition (CAPVD) method. After the experimental investigations, the lowest wear rate was obtained for the 60–90° sample, and the highest microhardness value was measured as ∼1070 HV_0.1 for the 90–45° sample. It was specified that the wear rate rose as the hatch spacing increased among the same build orientation Ti6Al4V alloys produced by SLM method. According to thermal analysis results, among the same hatch spacing values, it was determined that as the build orientation value increased, the specific heat capacity and thermal conductivity values decreased. Among the coated samples, the highest thermal conductivity and specific heat capacity values were obtained for casting samples as 5.63 (W/m·K) and 560.4 (J/kg·K), respectively.

中文翻译：

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选区激光熔化Ti6Al4V合金上TiAlN薄膜的磨损与热行为


在本研究中，旨在提高 Ti6Al4V 合金的摩擦学和热性能，该合金采用选择性激光熔化 (SLM) 方法和传统方法（铸造）以三种不同的构建方向和舱口间距制造。此外，采用阴极电弧物理气相沉积（CAPVD）方法在这两种方法制备的样品表面涂覆TiAlN薄膜。经过实验研究，60-90°样品的磨损率最低，90-45°样品的显微硬度最高，为~1070 HV _0.1 。结果表明，采用 SLM 方法生产的相同构造取向的 Ti6Al4V 合金中，磨损率随着剖面线间距的增加而增加。根据热分析结果，在相同的舱口间距值中，随着构建方向值的增加，比热容和导热系数值降低。在涂层样品中，铸造样品的导热率和比热容值最高，分别为5.63（W/m·K）和560.4（J/kg·K）。