Effect of electroslag remelting on microstructure and wear property of high-alloy martensite steel
The electroslag remelting process has been adopted to study the characteristic evolution of primary carbides in high alloy martensitic steel and its impact on impact toughness and wear resistance using OM,SEM,TEM,and other methods.The results show that electroslag remelting effectively refines the primary carbide and improves its distribution,which promotes the impact toughness and wear resistance of high alloy martensitic steel.Compared with vacuum smelting ingot,the length and width of the crack caused by primary carbide in electroslag remelting ingot are significantly reduced,and the impact toughness increases from 5.5 J to 7.8 J.After heat treatment,the uniform distribution of primary carbide and precipitation of secondary carbide in electroslag remelting ingot prevent the grinding of martensitic matrix by abrasive particles,which improves the wear resistance of martensitic steel.
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维普
