Topic I, Höppel HW, Göken M (2008)
Publication Type: Conference contribution
Publication year: 2008
Publisher: Trans Tech Publications Ltd
Book Volume: 584-586 PART 2
Pages Range: 833-839
Conference Proceedings Title: Materials Science Forum
Event location: DEU
ISBN: 9780878493609
DOI: 10.4028/www.scientific.net/msf.584-586.833
Commercial purity aluminium AA1050 and aluminium alloy AA6016 were accumulative roll bonded and subsequently friction stir welded. The microstructure of the conventional and ultrafine-grained materials produced by accumulative roll bonding is strongly affected by friction stir welding. The elongated ultrafine-grained microstructure of roll bonded sheets becomes coarser and equiaxed in the nugget region. Hydraulic bulge tests showed that higher burst pressure can be achieved for samples without friction stir welding than for the ones with friction stir welding. Localised deformation, crack initiation and propagation, as well as the final fracture occurred within the nugget. Friction stir welded AA1050 sheet showed similar achievable burst pressures and von Mises equivalent strains compared to the as-received conventionally grained sheets. On the other hand, significantly higher burst pressures and at the same time higher von Mises equivalent strains were observed for the friction stir welded ultrafine-grained material than for the friction stir welded conventionally grained material. © 2008 Trans Tech Publications.
APA:
Topic, I., Höppel, H.W., & Göken, M. (2008). Deformation behaviour of accumulative roll bonded and friction stir welded aluminium alloys. In Materials Science Forum (pp. 833-839). DEU: Trans Tech Publications Ltd.
MLA:
Topic, Irena, Heinz Werner Höppel, and Mathias Göken. "Deformation behaviour of accumulative roll bonded and friction stir welded aluminium alloys." Proceedings of the 4th International Conference on Nanomaterials by Severe Plastic Deformation, DEU Trans Tech Publications Ltd, 2008. 833-839.
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