FRICTION AND WEAR BEHAVIORS OF Ti6Al4V ALLOY TREATED BY PLASMA Ni ALLOYING

Zhenxia Wang, Wenlan Cai, Hairui Wu, Naiming Lin, Xiaohong Yao, Zhiyong He and Xiaoping Liu
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Zhenxia Wang: College of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Wenlan Cai: College of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Hairui Wu: College of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Naiming Lin: College of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Xiaohong Yao: College of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Zhiyong He: College of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
Xiaoping Liu: College of Material Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China

Surface Review and Letters (SRL), 2018, vol. 25, issue 05, 1-7

Abstract: The Ni modified layer was prepared on surface of the Ti6Al4V substrate by plasma surface alloying technique (PSAT). The cross-section micro structure, phase structure and microhardness of Ni modified layer were studied. The friction and wear behavior of the Ni modified layer and the Ti6Al4V substrate were analysed. The effects of displacement amplitude, frequency and fretting time on friction coefficient of the Ni modified layer were investigated. The results indicated that the wear rate was lower compared with that of the Ti6Al4V substrate. Friction coefficient of the Ni modified layer increased with the increase of frequency. But it was insensitive to the change of wear time and the displacement amplitude. The wear mechanism of the Ti6Al4V was adhesion and abrasion wear mechanism while the Ni modified layer showed slightly abrasion wear.

Keywords: Ti6Al4V; Ni modified layer; friction and wear; plasma alloying (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1142/S0218625X18500968

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