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Indexed by:期刊论文

Date of Publication:2007-12-01

Journal:CHINESE SCIENCE BULLETIN

Included Journals:SCIE、Scopus

Volume:52

Issue:23

Page Number:3292-3298

ISSN No.:1001-6538

Key Words:supersonic plasma spraying; CoCrW coating; rare earth oxide; tribological property

Abstract:A novel supersonic plasma spraying was used to prepare rare earth oxides doped CoCrW coatings. X-ray diffractometer, contact surface profiler, hardness tester, micro-friction and-wear tester and environmental scanning electron microscope equipped with energy dispersive X-ray spectroscopy were employed to investigate the phase structure, surface morphology, microhardness, friction and wear properties of the sprayed coatings. The results show that rare earth oxide doped coatings have high microhardness and excellent tribological properties. Furthermore, the friction and wear mechanisms of sprayed coatings are also discussed.