The effect of several sputtered coatings on oxidation resistance and mechanical performance of Ti60 alloy was investigated. Sputtered pure Al, Ti-36Al, Ni-16Cr-2.5Al(wt%) coatings and reactively-sputtered Al2O3 film were effective in inhibiting the oxidation and oxygen-embrittlement of Ti60 alloy at 600-700 degrees C, while Al2O3 and TiAl coatings exhibited a better effect than Al and NiCrAl coatings from the point of view of coating-substrate compatibility. The tensile test after 100h exposure at 600 degrees C in air also showed that Ti60 alloy with Al2O3 and TiAl coatings exhibited a higher ductility than that with Al and NiCrAl coatings, which exhibited a good correlation with coating-substrate compatibility. (C) 1998 Elsevier Science S.A. All rights reserved.
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