Open AccessWear behavior of oxidized Ti-48Al-2Cr-2Nb (at. %), Ti-6Al-4V and Cp-Ti under dry and lubricated conditions
Author(s) -
Carlos R. Ramos-Saenz,
P.A. Sundaram
Publication year - 2015
Publication title -
journal of biomedical engineering and informatics
Language(s) - English
Resource type - Journals
eISSN - 2377-939X
pISSN - 2377-9381
DOI - 10.5430/jbei.v2n1p39
Subject(s) - materials science , alloy , metallurgy , titanium aluminide , reciprocating motion , abrasion (mechanical) , wear resistance , vanadium , titanium , boride , titanium alloy , adhesive wear , composite material , intermetallic , bearing (navigation) , cartography , geography
Gamma titanium aluminide (gamma-TiAl) is a titanium alloy which contains no vanadium and appears to have potential for biomedical applications such as joint prostheses. The tribomechanical properties of Ti-48Al-2Cr-2Nb (at. %) (gamma-TiAl) subjected to oxidation in air at 500°C and 800°C were determined by standard wear tests using a hardened stainless steel (SS) pin in a linearly reciprocating mode under both dry and lubricated (Ringer’s solution) media. Similar properties for CP-Ti and Ti-6Al-4V were measured for comparison. The lowest mean mass loss was obtained for oxidized gamma-TiAl alloy indicating excellent wear resistance. The dominant wear mechanism on all the Ti alloy samples was abrasion. The oxidation temperature had a minimal effect on the wear of gamma-TiAl but was significant for the other two alloys.