微观结构
材料科学
合金
冶金
腐蚀
动力学
高温腐蚀
化学工程
量子力学
物理
工程类
作者
Guang Chen,Hongyan Yang,Huilan Sun,Fu Wang,Hui Wang,Qingquan Kong,Xuguang An,Yiyong Zhou,Jun Wang
标识
DOI:10.1016/j.corsci.2021.109927
摘要
The high-temperature steam oxidation behaviors of the four lean-Cr (7–10 wt% Cr) FeCrAl alloys containing minor elements and the Fe13Cr4.5Al alloy without minor elements (as a reference) were systematically investigated at 1100 ℃. The cross-sectional microstructure of the products after oxidation was investigated with FIB + TEM. The results show that the oxidation kinetics of these alloys except for 7Cr alloys obeyed the sub-parabolic rate law. The ability to form a protective alumina scale was worsened by the reduction of Cr content. The content of Cr should be higher than 7 wt% to promote alumina scale formation at 1100 ℃.
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