期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 706, 期 -, 页码 455-460出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.02.251
关键词
Dynamic recrystallization; Single crystal superalloy; Oxidation; Creep; Stress; Orientation
资金
- National Nature Science Foundations of China (NSFC) [U1435207, 51371014]
The stress and orientational dependence of the oxidation-induced dynamic recrystallization of a Nibased single crystal superalloy during high temperature creep were investigated. Cellular recrystallization appeared on the surface of the sample because of the oxidation-induced gamma'-free layer. With the increase of the stresses, the depths of the recrystallized layers increased at first and then decreased. Besides, the tendency of recrystallization in < 011 > orientation was stronger than that in < 010 > orientation under the same load. The underlying mechanisms are discussed in this study. (C) 2017 Elsevier B.V. All rights reserved.
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