Characterization of titanium alloy Ti-6Al-4V for chemical, marine and industrial applications

The current paper explains the corrosion characteristics of titanium alloy Ti-6Al-4V in three different environments, which simulates chemical, marine and industrial environments at various temperatures. The results revealed that the titanium alloy could form a protective oxide scale under different environmental conditions studied at both low and higher temperatures. The corrosion rate evaluated in different environments and at different temperatures was correlated. The pitting corrosion studies in different environments revealed that the alloy is resistant to pitting and crevice corrosion in marine and chemical environments at both temperatures but susceptible in industrial environments. The corrosion morphologies observed at different temperatures and in various environments were correlated as well as the degradation mechanism that is leading the titanium alloy to fail under various environmental conditions. Finally, based on the results obtained with different techniques, the alloy was recommended to fabricate the components intended to use in a variety of environmental conditions. (C) 2004 Elsevier Inc. All rights reserved.