Investigation on Wear Resistance of Fe-Cr-Mo-Mn Alloy by Surfacing Technique in Subsoiler

摘要

Plough shovel farming conditions are poor, easy to wear. In order to solve the problem, the new process of surfacing was proposed and Fe-Cr-Mo-Mn alloy was welding on the easily worn parts of the 65Mn steel subsoiler. The surfacing layer and substrate binding status, microstructure and wear resistance were tested and observed by using optical microscope, micro hardness, and abrasive wear test machine. The combination of the microstructure of cladding layer is mainly composed of lower bainite and retained austenite, while the welding layer and substrate are in good metallurgical bonding. The wear resistance increased by 2.38 times, and the tillage life of the plough is prolonged.