In the present work, the measurements of tribological properties of Mo–NiCr–WC–W blend composite coating on the mild steel substrate deposited using high velocity oxy-fuel thermal spray technique under various temperatures have been presented. Initially, the powders for coating were mixed employing a laboratory ball mill. The composite coating is done via a well-known high velocity oxy-fuel thermal spray technique. Further, different test specimens were prepared to measure the tribological behaviour and residual stress. High-temperature pin-on-disc tribometer was used to investigate the wear and friction with increasing temperature, load and sliding speed. X-ray diffraction, field emission scanning electron microscope, and micro-hardness tester were used to characterize the coating, wear track and micro-hardness of the coatings, respectively. The weight-loss method and machine output were used to analyze the coefficient of friction and specific wear rate. Based on the said test, responses have been obtained, analyzed, and discussed in detail.

在目前的工作中，已经介绍了在不同温度下使用高速氧燃料热喷涂技术沉积在低碳钢基底上的 Mo-NiCr-WC-W 共混复合涂层的摩擦学性能测量。最初，使用实验室球磨机混合用于涂层的粉末。复合涂层是通过众所周知的高速氧燃料热喷涂技术完成的。此外，制备不同的试样来测量摩擦学行为和残余应力。高温针盘式摩擦磨损计用于研究随温度、载荷和滑动速度增加的磨损和摩擦。采用X射线衍射仪、场发射扫描电镜和显微硬度计分别对涂层、磨损轨迹和涂层的显微硬度进行表征。使用失重法和机器输出来分析摩擦系数和比磨损率。在上述测试的基础上，得到了回应、分析和详细讨论。