期刊
SCRIPTA MATERIALIA
卷 75, 期 -, 页码 58-61出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2013.11.019
关键词
Annealing; Microstructure; Aluminum alloys; Dislocation; Electroplasticity
类别
资金
- Basic Science Research Program through the National Research Foundation of Korea
- Ministry of Science, ICT and Future Planning [2013008806]
- POSCO [2013Z029]
- development program of the local science park
- ULSAN Metropolitan City
- MEST
- IT R&D program of MOTIE/KEIT [10044807]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10044807] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2013R1A2A2A01008806] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The mechanical behavior of an aluminum alloy under a pulsed electric current was investigated by uniaxial tension and subsequent microstructural observations. The elongation increased drastically with softening of the flow stress under the electric current. Microstructural observations confirmed that the effect of Joule heating on this softening is not dominant and the recovery of dislocation occurs at a given current density. This study proves that the electric current itself could play a distinct role in inducing annealing apart from Joule heating. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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