期刊
CORROSION SCIENCE
卷 109, 期 -, 页码 36-42出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2016.03.021
关键词
Stainless steel; SEM; XRD; XPS; High temperature corrosion
资金
- National Nature Science Foundation of China [51071163, 51301202]
- National Key Basic Research Program of China (973 Program) [2012CB625102]
- Education Department of Shaanxi Provincial Government [15JK1489]
The corrosion behavior of a commercial austenitic stainless steel HR3C was investigated in air and in pure steam at 700 degrees C, and the results are compared. The results show that the chromium concentration in HR3C was sufficient to form protective chromia scale initially in both environments. The oxide scales thermally grown in pure steam, however, were apt to lose their protectiveness by cracking and buckling. A failure mechanism of chromia scale thermally grown in pure steam is proposed by considering influences of hydrogen produced during steam oxidation in terms of molecular hydrogen and hydrogen defects. (C) 2016 Elsevier Ltd. All rights reserved.
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