Microstructure and Mechanical Properties of Friction Stir Welded AA2024-T3 Aluminum Alloy
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- Khodir Saad Ahmed
- Joining and Welding Research Institute, Osaka University
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- Shibayanagi Toshiya
- Joining and Welding Research Institute, Osaka University
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- Naka Masaaki
- Joining and Welding Research Institute, Osaka University
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AA2024-T3 Aluminum alloy plates of 3 mm thickness were friction stir butt welded at a constant welding speed of 50 mm/min and rotation speeds of 400, 600, 800, 1000, 1250, and 1500 min−1. Effects of rotation speed on microstructures, hardness distributions, and tensile properties of the joints were investigated. Equiaxed grain size increased with increasing rotation speed till 1000 min−1 of rotation speed. Increase of rotation speed more than 1000 min−1 brought about no significant increase of grain size in the stir zone. Also, increasing rotation speed resulted in finer and more homogenous distributions of second phase particles in the stir zone. Hardness increased both in the stir zone and thermo mechanically affected zone as the rotation speed increased and reached to that of base metal. Kissing bond-free joints were fractured at the heat affected zone on the retreating side and a maximum tensile strength of the joints was 402 MPa which was achieved at 1250 min−1 of rotation speed. The joint efficiency was 88%.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 47 (1), 185-193, 2006
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204250602880
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- NII論文ID
- 130004452919
- 10017151546
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- NII書誌ID
- AA1151294X
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- COI
- 1:CAS:528:DC%2BD28XhvFyitrg%3D
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 7773486
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可