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HIGH-TEMPERATURE TRIBOLOGICAL BEHAVIORS OF TiNi/Ti2Ni ALLOYED LAYER ON SURFACE OF Ti6Al4V ALLOY

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  • ZHENXIA WANG

    (College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • HAIRUI WU

    (College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • NAIMING LIN

    (College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • XIAOHONG YAO

    (College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • ZHIYONG HE

    (College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • XIAOPING LIU

    (College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

Abstract

Plasma surface alloying (PSA) technique was employed with nickel as incident ions to prepare the TiNi/Ti2Ni alloyed layer on surface of Ti6Al4V. High-temperature friction and wear performance of TiNi/Ti2Ni alloyed layer and the Ti6Al4V substrate were evaluated at 500∘C. The results indicated that the TiNi/Ti2Ni alloyed layer exhibited superior high-temperature wear performance. The variations of friction coefficient were the same rule but wear rate was lower compared to Ti6Al4V substrate. The wear mechanism of TiNi/Ti2Ni alloyed layer was mainly slight abrasion and the Ti6Al4V substrate showed abrasion and oxidation wear. The friction coefficient of the TiNi/Ti2Ni alloyed layer decreased from 0.90 to 0.50 with the increase of temperature from room temperature to 500∘C.

Suggested Citation

  • Zhenxia Wang & Hairui Wu & Naiming Lin & Xiaohong Yao & Zhiyong He & Xiaoping Liu, 2017. "HIGH-TEMPERATURE TRIBOLOGICAL BEHAVIORS OF TiNi/Ti2Ni ALLOYED LAYER ON SURFACE OF Ti6Al4V ALLOY," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 24(03), pages 1-7, April.
    • Handle: RePEc:wsi:srlxxx:v:24:y:2017:i:03:n:s0218625x17500287
    DOI: 10.1142/S0218625X17500287
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