Abstract
Abstract Wear properties of a metastable beta titanium alloy, Ti-10V-2Fe-3Al, with and without boron and carbon were examined in two different heat treatment conditions. The analysis of wear tracks and debris clearly indicated that the underlying wear mechanism was one of delamination. At a constant load, the wear rate as a function of sliding speed exhibited a maximum at an intermediate speed of 1 m/s. Wear rate increased with increasing load at a constant sliding speed. These trends were explained in terms of coefficient of friction and maximum temperature attained. For the same heat treatment, boron plus carbon containing alloy exhibited higher wear rate as compared to the base alloy. This was attributed to lesser ductility of the bulk alloys that influenced the formation and characteristics of the mechanically mixed layers.
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