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Indexed by:会议论文

Date of Publication:2012-07-25

Included Journals:EI、Scopus

Page Number:413-416

Abstract:In this paper, the WC-10Co4Cr coatings were deposited by the laser hybrid plasma spraying (LHPS) technology on the 38CrMoAl substrate. Microstructures, tribological characteristics and corrosion-resistance performance of the coatings were studied using an optical microscope, an X-ray diffraction, a scanning electron microscope, an SRV friction and wear tester and the Neutral Salt Spraying (NSS) test. Test results indicated that LHPS WC- 10Co4Cr coating had good wear-resistance and corrosion-resistance performance comparing with the base material. The LHPS coating overcame many defects of the conventional spraying coatings such as poor bonding strength, many pores and many cracks. LHPS is able to improve the bonding strength as the interfaces are melted and joined by the laser simultaneously with plasma spraying. The coating achieves metallurgy bonding and its microstructure becomes more compact and therefore its performances are greatly improved. ? Springer-Verlag London 2013.