Abstract
In order to study the influence of aluminum, chromium, and silicon on the adherence of oxide layers to the metallic substrate for binary alloys of titanium, adhesion measurements were carried out and the results were correlated with the oxidation behavior of these materials. Ti-Al, Ti-Cr, and Ti-Si alloys were prepared and oxidized at temperatures of 550–700°C in air and in oxygen, for oxidation times from a few hundred to several thousand hours. The reaction kinetics were followed using continuous thermogravity or daily weighing of samples. For Ti-Al and Ti-Si alloys, a slight decrease in the adherence of oxide layers to the substrate was observed for the lowest aluminum contents (1.65 and 3%) and silicon content (0.25%) as compared with the behavior of unalloyed titanium; at higher levels, the adherence increased with the alloying element content. For Ti-Cr alloys, the addition of chromium increased the adhesion of oxide layers to the substrate for all cases; however, the change in adhesion with chromium content was not monotonic.
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Chaze, A.M., Coddet, C. Influence of the nature of alloying elements on the adherence of oxide films formed on titanium alloys. Oxid Met 28, 61–71 (1987). https://doi.org/10.1007/BF00666471
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DOI: https://doi.org/10.1007/BF00666471