Özel Cihan, Gürgenç Turan
Department of Mechanical Engineering, Firat University, Engineering Faculty, Elazig, Turkey.
Department of Automotive Engineering, Firat University, Technology Faculty, Elazig, Turkey.
PLoS One. 2018 Jan 11;13(1):e0190243. doi: 10.1371/journal.pone.0190243. eCollection 2018.
In this study, AISI 1020 steel surface was coated in different heat inputs with (wt.-%) 50FeCrC-20FeW-30FeB powder mixture by using plasma transferred arc (PTA) welding method. The microstructure of the coated samples were investigated by using optical microscope (OM), scanning electron microscope (SEM), X-ray diffraction (XRD) and energy dispersive X-ray (EDS). The hardness was measured with micro hardness test device. The dry sliding wear and friction coefficient properties were determined using a block-on-disk type wear test device. Wear tests were performed at 19.62 N, 39.24 N, 58.86 N load and the sliding distance of 900 m. The results were shown that different microstructures formed due to the heat input change. The highest average micro hardness value was measured at 1217 HV on sample coated with low heat input. It was determined that the wear resistance decreased with increasing heat input.
在本研究中，采用等离子转移弧（PTA）焊接方法，以（重量百分比）50FeCrC - 20FeW - 30FeB粉末混合物在不同热输入条件下对AISI 1020钢表面进行涂层处理。通过光学显微镜（OM）、扫描电子显微镜（SEM）、X射线衍射（XRD）和能量色散X射线（EDS）对涂层样品的微观结构进行了研究。使用显微硬度测试装置测量硬度。使用块盘式磨损测试装置测定干滑动磨损和摩擦系数性能。磨损试验在19.62 N、39.24 N、58.86 N载荷以及900 m滑动距离下进行。结果表明，由于热输入变化形成了不同的微观结构。在低热输入涂层的样品上测得最高平均显微硬度值为1217 HV。确定耐磨性随热输入增加而降低。
