Improving the wear resistance of titanium alloys under high contact loads

Previously abstracted from original as item 9206-58-0904. The wear resistance of VT23 Ti alloy at contact loads up to 300 N/mm exp 2 was significantly increased by applying a eutectic Fe--C--Cr--Ni--V--Ti alloy to the surface by ion plasma surfacing in an Ar atmosphere. The eutectic alloy composition was 15.4% Cr, 7.7% Ni, 7.9% vanadium, 3.2% Ti, 1.9% carbon, and 1.4% boron, Fe remainder. The phase content of the coating included 5.2 TiB sub 2 and 11 vol.% VC. In dry friction wear tests conducted on a reciprocal sliding apparatus, the wear rate was decreased by four times relative to uncoated samples.