Research on Arc Additive Manufacturing Technology for Wear-Resistant Steel
This paper uses arc additive manufacturing technology to prepare wear-resistant steel specimens.The weld seam width is uniform,the weld seam spreading performance is good,the bonding strength is high,and there are no internal defects,and it has good formability.Metallographic analysis confirms that it is mainly ferrite.The micro hardness of the sample is uniformly dis-tributed horizontally and vertically,equal to 464.7 HV0.2 and 482.4 HV0.2,respectively.The tensile strength,elongation,and Charpy impact are 945.3 MPa,4.3%,and 5 J,respectively,displaying excellent mechanical properties.Through friction experi-ments,it find that its friction coefficient can reach the order of 10-7~10-8 and has good wear resistance.