Formation of Intermetallic Compounds in Dissimilar Friction Spot Weld of Al to Mg Alloys

Uceu  Suhuddin; Vanessa Fischer; Jorge dos Santos

doi:10.4028/www.scientific.net/MSF.765.731

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HomeMaterials Science ForumMaterials Science Forum Vol. 765Formation of Intermetallic Compounds in Dissimilar...

Formation of Intermetallic Compounds in Dissimilar Friction Spot Weld of Al to Mg Alloys

Abstract:

In the present study, friction spot welding has been used for joining dissimilar AA5754 aluminum to AZ31 magnesium alloys. To get more insight into the microstructure, stop-action experimentation was employed. The welding cycle was forced to stop during the dwell time, and subsequently, the weld was quenched by pouring a mixed solution of ice and water to freeze the microstructure. Formation of the liquid phase leading to a formation of brittle intermetallic compound has been studied. Microstructural analyses reveal that formation of intercalated layers and a high density of grain boundaries induced by plastic deformation enhance the formation of eutectic structure during the welding process.

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Periodical:

Materials Science Forum (Volume 765)

Pages:

731-735

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.765.731

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Online since:

July 2013

Authors:

Uceu Suhuddin, Vanessa Fischer, Jorge dos Santos

Keywords:

Diffusion, Dissimilar, Friction Spot Welding, Intermetallic Compound

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