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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Statistical optimization and fretting fatigue study of Zr/ZrO2 nanotubular array coating on Ti-6Al-4V
Surface and Coatings Technology, Volume 258, Year 2014
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Description
Herein, the fretting fatigue behavior of zirconium nanotube arrays on the surface of Ti-6Al-4V is studied. Initially, a thin film of pure zirconium (Zr) was deposited onto a Ti-6Al-4V substrate using physical vapor deposition (PVD) magnetron sputtering for the primary layer at varying DC power, temperature and substrate bias voltage values. To obtain higher adhesion strength, the Taguchi optimization method was used to estimate the optimum coating parameters, while a Pareto ANOVA was employed to determine the significant parameters. The strongest coating adhesion, as determined by a scratch force test, was achieved at 300W DC power, 200°C and a 75V bias voltage. Consequently, nanotubes were produced via Zr anodization in an NH4F electrolyte solution (95 glycerol:5 water) at different times and at a constant potential of 60V (second layer). The fretting fatigue behavior of anodized samples annealed at 400°C and 800°C was investigated. The results indicate that the fretting fatigue life of the ZrO2 nanotube-coated samples was significantly improved at low and high cyclic fatigue at an annealing temperature of 400°C compared to the uncoated samples. © 2014 Elsevier B.V.
Authors & Co-Authors
Baradaran, Saeid
Malaysia, Kuala Lumpur
Universiti Malaya
Zalnezhad, Erfan
Malaysia, Kuala Lumpur
Universiti Malaya
Jeffrey Basirun, Wan Jefrey
Malaysia, Kuala Lumpur
Universiti Malaya
Hamouda, Abdel Magid S.
Qatar, Doha
Qatar University
Sookhakian, Mehran
Malaysia, Kuala Lumpur
Universiti Malaya
Sarhan, Ahmed A.D.
Malaysia, Kuala Lumpur
Universiti Malaya
Alias, Yatimah Binti
Malaysia, Kuala Lumpur
Universiti Malaya
Statistics
Citations: 23
Authors: 7
Affiliations: 2
Identifiers
Doi:
10.1016/j.surfcoat.2014.07.046
ISSN:
02578972
Research Areas
Environmental