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Tribological properties of La2O3 and CeO2 doped CoCrW coatings deposited by supersonic plasma spraying

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  • Mechanical Science
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Chinese Science Bulletin

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.

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Authors and Affiliations

  1. State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China

    Zhang ZhenYu, Lu XinChun & Luo JianBin

  2. Key Laboratory for Precision and Non-traditional Machining Technology of the Ministry of Education, Dalian University of Technology, Dalian, 116024, China

    Zhang ZhenYu

Authors
  1. Zhang ZhenYu
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  2. Lu XinChun
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  3. Luo JianBin
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Corresponding author

Correspondence to Zhang ZhenYu.

Additional information

Supported by the National Key Basic Research Program of China (Grant No. 2003CB716201), the National Natural Science Foundation of China (Grant No. 50575121), the National Science Foundation for Post-doctoral Scientists of China (Grant No. 20060390064), the Scientific Startup Research Foundation for the New Staff of Dalian University of Technology, and the Open Foundation of Key Laboratory for Precision and Non-Traditional Machining Technology of the Ministry of Education of Dalian University of Technology (Grant No. JMTZ200703)

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Zhang, Z., Lu, X. & Luo, J. Tribological properties of La2O3 and CeO2 doped CoCrW coatings deposited by supersonic plasma spraying. Chin. Sci. Bull. 52, 3292–3298 (2007). https://doi.org/10.1007/s11434-007-0453-0

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  • DOI: https://doi.org/10.1007/s11434-007-0453-0

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