Abstract
The oxidation behavior of TiB-whisker-reinforced Ti60 (Ti–5.8Al–4Sn–3.4Zr–0.9Ta–0.4Mo–0.4Si–0.37Nb–0.07C) alloy (TiBw/Ti60) composites with high strength at room and high temperatures was studied in a temperature range of 873–1173K for 100h in air. The results show that the oxidation kinetics of the TiBw/Ti60 composites follows parabolic law and linear law at 873–973K and 1173K, respectively, while it follows parabolic–linear laws at 1073K. It is unexpected that the oxidation resistance of the TiBw/Ti60 composites is lower than that of the monolithic Ti60 alloy, which is mainly attributed to the presence of more phase boundaries within the composites.
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