期刊
SCRIPTA MATERIALIA
卷 62, 期 6, 页码 353-356出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2009.10.037
关键词
Creep; Tempered martensite ferritic steels; Dislocations
类别
资金
- International Max Planck Research School on Surface and Interface Engineering in Advanced Materials (IMPRS SurMat)
- Ministry of I Education of the Czech Republic [MSM 0021620834]
- Valourec Mannesmann GmbH
We document the evolution of dislocation densities in tempered martensite ferritic steels during long-term aging and creep Scanning transmission electron microscopy in combination with it high-angle annular dark-field detector IS Used to Study dislocations in a 12% Cr steel. During aging, the dislocation density quickly decreases by it factor 2 and then remains constant Long-term creep results tit an Initial decrease by a Factor 10, and after this sharp drop, the dislocation density continues to decrease (C) 2009 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved
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