Abrasive wear of nitrogen-implanted boron-coated Ti-6Al-4V and temperature effect on microhardness and sliding friction coefficient

Boron was electron-gun evaporated onto manually polished surfaces of Ti-6Al-4V and bombarded with 100 keV nitrogen ions for different doses. The highest increase in Knoop microhardness was observed for the highest dose considered in this work, i.e., 10 17ions cm -2, which was maintained for subseque...

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Bibliographic Details
Published in:Applied surface science 1993, Vol.64 (2), p.133-146
Main Authors: Baazi, Tandjaoui, Knystautas, Emile J., Fiset, Michel
Format: Article
Language:English
Subjects:
Applied sciences
Contact of materials. Friction. Wear
Exact sciences and technology
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
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Summary:Boron was electron-gun evaporated onto manually polished surfaces of Ti-6Al-4V and bombarded with 100 keV nitrogen ions for different doses. The highest increase in Knoop microhardness was observed for the highest dose considered in this work, i.e., 10 17ions cm -2, which was maintained for subsequent abrasive wear investigation by optical and scanning electron microscopies. Relative changes of Knoop microhardness and sliding friction coefficient as a function of implantation temperature (room temperature, 150, 300, 450 and 600°C) were measured. The optimal improvements obtained for the 450°C implantation correlate with the higher nitrogen retention as evidenced by XPS depth-concentration analysis.
ISSN:0169-4332
1873-5584
DOI:10.1016/0169-4332(93)90274-F