OXIDATION OF PM ALLOY Al-10Ti DURING SLIDING WEAR
(Department of Materials Science and Engineering; Zhejiang University; Hangzhou 310027)
Abstract: Sliding wear behaviors of PM alloy Al 10Ti have been investigated. The compositions and structures of worn surface layer and wear debris have been studied using XPS and X ray diffraction. The results show that iron transfers from the steel counterface to the surface of Al Ti alloy sample. And Fe2O3 is formed during sliding wear process. The dark worn surface layer formed in sliding wear is determined to be an oxide layer consisting of Al2O3 and Fe2O3, which is rich in oxygen and aluminum, but depleted of titanium. The oxide layer can reduce wear of aluminum alloy.
Key words: oxidation sliding wear Al Ti alloy