Hardfacing material for impact wear-resistance with Fe-Mn-Cr-Mo-V alloy system

Using H08A core wire, the TKCE50 electrode was compared with classical hardfacing electrode D256.The hardness, wear resistance, performance of work-hardening effect after impact and the effect of alloy elements on the hardfacing layers were studied by means of impact wear test, hardness test and microstructure analysis.The results show that the hardfacing electrode with Fe-Mn-Cr-Mo-V alloy system has high toughness, resistance to cracking and work-hardening properties, especially the performance of impact wear-resistantance is excellent.With the increase of contents of Cr, Mo and V, the hardness of hardfacing metal face increases, and when it reached some number, the degree of increasing becomes stable.After impact by 9000 times, the working-hardening degree reached its top, and the worn mass is the lowest and the wear-resistance is the best at this time.