Research on Restoration for 5CrNiMo Die Based on Laser Cladding
Disabled 5CrNiMo die was repaired by the synchronizing laser coating,using alloy powder with rare earth yttrium(Y),and the microstructure,surface hardness,wear resistance and high temperature oxidation resistance were tested.The results show that the synchronizing laser coating can successfully repair disabled 5CrNiMo die,and it can form metallurgy combination between alloy powder with rare earth yttrium and 5CrNiMo matrix.Moreover,the surface hardness,wear resistance and high temperature oxidation resistance increase by 40.2%,85.7% and 86.3%,respectively.