Effect of Rare Earth Elements on Powder Boro-Carbo-Nitriding at Low Temperature

The process of the co cementation layers of low temperature powder multicomponent thermochemical treatment with B C N RE and the structure and properties were studied and compared with those of conventional boro carbo nitriding (B C N) by X ray diffractometer, potentiostat and wear machine. The results show that rare earth elements have significant catalytic effect within proper limits. Both wear resistance and corrosion resistance of the B C N RE co cementation layer are greatly increased in comparison with those of the B C N. The function mechanism of rare earth elements is also discussed.