Investigating the formation of intermetallic compounds during friction stir welding of magnesium alloy to aluminum alloy in air and under liquid nitrogen

Date

2014-03-01

Author

Mofid, M. A.
Abdollah-zadeh, A.
Gür, Cemil Hakan

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This research demonstrates the use of submerged friction stir welding under liquid nitrogen as an alternative and improved method for creating fine-grained welds, and hence, to alleviate formation of intermetallic phases. Magnesium alloy and aluminum alloy were joined by friction stir welding in two environments, namely air and liquid nitrogen, with 400 rpm rotation and 50 mm/min travel speed. The temperature profile, microstructure, scanning electron microscope energy dispersive X-ray spectroscopy analysis and hardness were evaluated. In the stir zone of air-welded specimen, formation of brittle intermetallic compounds causes the weld to crack. These phases were formed because of constitutional liquation. The stir zone of under liquid nitrogen-welded specimen showed that formation of intermetallic compounds is suppressed significantly because of lower heat input.

Subject Keywords

Control and Systems Engineering, Mechanical Engineering, Industrial and Manufacturing Engineering, Software, Computer Science Applications

URI

https://hdl.handle.net/11511/39278

Journal

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY

DOI

https://doi.org/10.1007/s00170-013-5565-x

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

M. A. Mofid, A. Abdollah-zadeh, and C. H. Gür, “Investigating the formation of intermetallic compounds during friction stir welding of magnesium alloy to aluminum alloy in air and under liquid nitrogen,” INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, pp. 1493–1499, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39278.