Role of Third Material (Interlayer) on Mechanical Properties of the AA2024-Copper Joints Carried out by Friction Stir Welding (FSW)

Anbukkarasi, R and Kailas, Satish V (2019) Role of Third Material (Interlayer) on Mechanical Properties of the AA2024-Copper Joints Carried out by Friction Stir Welding (FSW). In: TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 72 (6, SI). pp. 1603-1606.

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Abstract

The work focused on improving the mechanical properties of AA2024-Cu joints by introducing a third material in the form of interlayer. The interlayer chosen for this purpose was Zn based on the resultant intermetallic phases that could have formed with matrix. Experiment was carried between AA2024 and copper plates with Zn strip. It included the optimization of tool-offset positions. The welds were characterized by scanning electron microscope (SEM) equipped with electron probe micro-analyser (EPMA) and X-ray diffraction (XRD) techniques. The results showed that the Zn strip diffused well into the AA2024 matrix at the optimum tool-offset position and it had formed more than two intermetallic phases in the processed region, which had improved the strength and ductility of the welds significantly. It concluded that it was possible to enhance the properties by altering the composition and kind of intermetallics by using an appropriate filler metal in the form of interlayer.

Item Type:	Journal Article
Publication:	TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
Publisher:	SPRINGER INDIA
Additional Information:	copyright for this article belongs to SPRINGER INDIA
Keywords:	Friction stir welding; Filler metal; Interlayer; Dissimilar weld; Intermetallics
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	14 Aug 2019 12:01
Last Modified:	14 Aug 2019 12:01
URI:	http://eprints.iisc.ac.in/id/eprint/63434

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