Study on the Tribological Properties and Composition of W6Mo5Cr4V2 High Speed Steel Implanted by Boron

XIONG Wan-quan¹，CAI Zhi-hai¹，ZAHO Jun-jun¹，ZHANG Ping¹，TAN Jun¹

(1.National Key Laboratory for Remanufacturing, Beijing 100072, P. R. China)

摘要:Boron atoms were implanted into W6Mo5Cr4V2 high-speed steel (HSS) in CC-60 ion implantation machine to improve its tribological properties. The influence of boron implantation dose on the microhardness, friction coefficient and wear resistance of HSS were investigated. The experiment results showed that the implantation of boron can improve the tribological properties of W6Mo5Cr4V2 steel greatly. Then the phase and composition of implanted layer were analyzed by XRD and XPS. The analysisresult revealed that the interface between the implantation layer and substrate appeared to be mixed.With the increase of boron dose, the compound of δ-WB, CrB, BFe3 are the main additive phases, which supposed to be the main reason to improve the tribological properties of W6Mo5Cr4V2 steel.

关键词:W6Mo5Cr4V2 steel; ion implantation; composition; tribological properties;

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