Review of the effect of alloy composition on the growth rates of scales formed during oxidation of gamma titanium aluminide alloys

One of the important properties in the development of gamma titanium aluminides for high-temperature applications is oxidation resistance. The scales formed during the oxidation of titanium aluminides are generally complex and the specific scale morphology can be strongly influenced by relatively small amounts of alloying additions. This paper includes a compilation of reported oxidation rates for a wide variety of titanium aluminide alloys. This compilation provides a basis for evaluating the variation in oxidation rates among similar alloys as well as reviewing the effect of various alloying additions on the oxidation behavior of gamma titanium aluminum alloys.