Microstructures and Mechanical Properties of Double-Friction Stir Welded 2219 Al Alloy
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- Lee Chang-Yong
- School of Advanced Materials Science and Engineering, Sungkyunkwan University
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- Choi Don-Hyun
- School of Advanced Materials Science and Engineering, Sungkyunkwan University
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- Lee Won-Bae
- Joining Research Group, Technical Research Laboratories, POSCO
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- Park Sun-Kyu
- School of Civil and Environmental Engineering, Sungkyunkwan University
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- Yeon Yun-Mo
- Department of Advanced Materials Application, Suwon Science College
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- Jung Seung-Boo
- School of Advanced Materials Science and Engineering, Sungkyunkwan University
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Abstract
The microstructure, mechanical properties and thermal stability of double friction stir welded 2219 Al alloy were investigated. The grain size of the double friction stir zone was about 0.8 μm, which was smaller than that of the single friction stir zone. The dissolution of the very fine strengthening particles resulted in a decrease of the hardness values in the single and double friction stir zone. Following the post weld heat treatment (PWHT), the grain structure of the double-FSW joints was found to be more unstable than that of the single-FSW joints, owing to the finer grain size, higher fraction of sub-grains and lower particle density.
Journal
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 49 (4), 885-888, 2008
The Japan Institute of Metals and Materials
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Details 詳細情報について
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- CRID
- 1390282679227787776
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- NII Article ID
- 10021146171
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- NII Book ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL BIB ID
- 9447707
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed