Metallurgical Nature at the Interface between Tool Shoulder and Workpiece during Friction Stir Welding

Zhan W. Chen; Timotius Pasang; Q. Yin; R. Peris

doi:10.4028/www.scientific.net/AMR.29-30.43

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 29-30Metallurgical Nature at the Interface between Tool...

Metallurgical Nature at the Interface between Tool Shoulder and Workpiece during Friction Stir Welding

Abstract:

Knowledge on the contact condition at the tool/workpiece interface is essential for understanding many aspects of FSW. In the present study, FSW experiments were conducted using aluminium alloys followed by metallographic examination focusing on the tool shoulder-workpiece interface region. It was observed that an interfacial intermetallic layer and hence metallurgical sticking/soldering readily formed. Temperature measurements have suggested the presence of interface liquid, hence suggesting a mechanical sliding contact condition dominant. This has been supported by the observation on material flow within the shear layer.

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Periodical:

Advanced Materials Research (Volumes 29-30)

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43-46

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https://doi.org/10.4028/www.scientific.net/AMR.29-30.43

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Online since:

November 2007

Authors:

Zhan W. Chen, Timotius Pasang, Q. Yin, R. Peris

Keywords:

Contact Condition, Interface Intermetallic, Material Flow, Shear Layer

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