Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/27402
Title: Influence of aluminium alloy type on dissimilar friction stir lap welding of aluminium to copper
Authors: Galvão, I. 
Verdera, D. 
Gesto, D. 
Loureiro, A. 
Rodrigues, D. M. 
Keywords: Friction stir lap welding; AA 6082/copper; AA 5083/copper; Microstructure
Issue Date: Nov-2013
Publisher: Elsevier
Citation: GALVÃO, I. [et. al] - Influence of aluminium alloy type on dissimilar friction stir lap welding of aluminium to copper. "Journal of Materials Processing Technology". ISSN 0924-0136. Vol. 213 Nº. 11 (2013) p. 1920-1928
Serial title, monograph or event: Journal of Materials Processing Technology
Volume: 213
Issue: 11
Abstract: A heat-treatable (AA 6082) and a non-heat treatable (AA 5083) aluminium alloys were friction stir lap welded to copper using the same welding parameters. Macro and microscopic analysis of the welds enabled to detect important differences in welding results, according to the aluminium alloy type. Whereas important internal defects, resulting from ineffective materials mixing, were detected for the AA 5083/copper welds, a relatively uniform material mixing was detected in the AA 6082/copper welds. Micro-hardness testing and XRD analysis also showed important differences in microstructural evolution for both types of welds. TEM and EBSD-based study of the AA 5083/copper welds revealed the formation of submicron-sized microstructures in the stirred aluminium region, for which untypically high hardness values were registered.
URI: http://hdl.handle.net/10316/27402
ISSN: 0924-0136
DOI: 10.1016/j.jmatprotec.2013.05.004
Rights: openAccess
Appears in Collections:I&D CEMUC - Artigos em Revistas Internacionais

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