A new combinatorial approach to assess the influence of alloy composition on the oxidation behavior and concurrent oxygen-induced phase transformations for binary Ti–xCr alloys at 650°C

Peyman Samimi, Yue Liu, Iman Ghamarian, David A. Brice, Peter C. Collins
2015 Corrosion Science  
Poor oxidation performance of Ti-based alloys is an important life-limiting factor for high temperature applications. In this paper, a combinatorial approach is used to investigate systematically the influence of composition and time on the oxidation of Ti-Cr system. A compositionally graded Ti-xCr specimen (0 6 x 6 40 wt%) was prepared and oxidized at 650°C. The structure and composition of the oxide and near-surface region were studied and a critical composition of $20 wt% Cr was identified
more » ... ove which the oxidation resistance is enhanced. Below the critical composition transition to a rapid breakaway oxidation was observed for extended exposure times.
doi:10.1016/j.corsci.2015.05.002 fatcat:jdnflpal45esnl7vfmihnhq734