Effect of thermal oxidation on corrosion and corrosion-wear behaviour of a Ti-6Al-4V alloy.
In this study, comparative investigation of thermal oxidation treatment for Ti-6Al-4V was carried out to determine the optimum oxidation conditions for further evaluation of corrosion-wear performance. Characterization of modified surface layers was made by means of microscopic examinations, hardness measurements and X-ray diffraction analysis. Optimum oxidation condition was determined according to the results of accelerated corrosion tests made in 5m HCl solution The examined Ti-6Al-4V alloy exhibited excellent resistance to corrosion after oxidation at 600 degrees C for 60 h. This oxidation condition achieved 25 times higher wear resistance than the untreated alloy during reciprocating wear test conducted in a 0.9% NaCl solution.
Department of Metallurgy and Materials Engineering, Istanbul Technical University, ITU Ayazaga Kampusu Maslak, 34469 Maslak, Istanbul, Turkey.
Hasan
H
Güleryüz
Hüseyin
H
Cimenoğlu
D000497:Alloys; D001672:Biocompatible Materials / Q000737:chemistry*; D003343:Corrosion; D006358:Hot Temperature; D008422:Materials Testing / Q000379:methods*; D010084:Oxidation-Reduction; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
D000497:Alloys; D001672:Biocompatible Materials; C031462:titanium alloy (TiAl6V4); D014025:Titanium