In this work, friction stir welding (FSW) is used to produce butt joints of 3-mm-thick sheets of AZ31B magnesium alloy to two different aluminum alloys: AA1100 (minimum 99% aluminum) and AA6061 (97.9% Al). The paper reports on utilizing metallurgical techniques to determine the distribution profiles of elemental aluminum and magnesium within the joints were produced using energy dispersive x-ray spectroscopy (EDX). Furthermore, X-ray diffraction (XRD) was used to identify the intermetallic compounds that form in the joints as a result of the stirring action at processing temperatures. Measurements confirmed the presence of primary intermetallic compounds in the welded joints and were identified to be the α-phase (Al12Mg17) and the β-phase (Al3Mg2). Lastly, micro-hardness studies were conducted at the intermetallic-compounds-rich locations resulting in hardness profiles.
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ASME 2014 International Mechanical Engineering Congress and Exposition
November 14–20, 2014
Montreal, Quebec, Canada
Conference Sponsors:
- ASME
ISBN:
978-0-7918-4963-7
PROCEEDINGS PAPER
Intermetallic Compound Formation in Al/Mg Friction Stir Welded (FSW) Butt Joints Available to Purchase
Z. G. El Chlouk,
Z. G. El Chlouk
American University of Beirut, Beirut, Lebanon
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G. Ayoub,
G. Ayoub
Texas A&M University at Qatar, Doha, Qatar
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G. T. Kridli,
G. T. Kridli
University of Michigan, Dearborn, MI
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R. F. Hamade
R. F. Hamade
American University of Beirut, Beirut, Lebanon
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Z. G. El Chlouk
American University of Beirut, Beirut, Lebanon
G. Ayoub
Texas A&M University at Qatar, Doha, Qatar
G. T. Kridli
University of Michigan, Dearborn, MI
R. F. Hamade
American University of Beirut, Beirut, Lebanon
Paper No:
IMECE2014-37213, V014T11A010; 6 pages
Published Online:
March 13, 2015
Citation
El Chlouk, ZG, Ayoub, G, Kridli, GT, & Hamade, RF. "Intermetallic Compound Formation in Al/Mg Friction Stir Welded (FSW) Butt Joints." Proceedings of the ASME 2014 International Mechanical Engineering Congress and Exposition. Volume 14: Emerging Technologies; Engineering Management, Safety, Ethics, Society, and Education; Materials: Genetics to Structures. Montreal, Quebec, Canada. November 14–20, 2014. V014T11A010. ASME. https://doi.org/10.1115/IMECE2014-37213
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