期刊
CORROSION SCIENCE
卷 97, 期 -, 页码 150-160出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2015.05.002
关键词
C. Oxidation; A. Titanium; B. SEM; B. TEM
资金
- NSF [1134873]
- Directorate For Engineering
- Div Of Industrial Innovation & Partnersh [1134873] Funding Source: National Science Foundation
- Div Of Industrial Innovation & Partnersh
- Directorate For Engineering [1641143] Funding Source: National Science Foundation
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 <= x <= 40 wt%) was prepared and oxidized at 650 degrees C. The structure and composition of the oxide and near-surface region were studied and a critical composition of similar to 20 wt% Cr was identified above which the oxidation resistance is enhanced. Below the critical composition transition to a rapid breakaway oxidation was observed for extended exposure times. (C) 2015 The Authors. Published by Elsevier Ltd.
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