Processing and properties of ultrafine-grain aluminium alloy 6111 sheet

Lapovok, R., Timokhina, I., McKenzie, P. W. J. and O'Donnell, R. 2008, Processing and properties of ultrafine-grain aluminium alloy 6111 sheet, Journal of materials processing technology, vol. 200, no. 1-3, pp. 441-450, doi: 10.1016/j.jmatprotec.2007.08.083.

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Title Processing and properties of ultrafine-grain aluminium alloy 6111 sheet
Author(s) Lapovok, R.ORCID iD for Lapovok, R. orcid.org/0000-0002-1395-9814
Timokhina, I.
McKenzie, P. W. J.
O'Donnell, R.
Journal name Journal of materials processing technology
Volume number 200
Issue number 1-3
Start page 441
End page 450
Total pages 10
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2008-05-08
ISSN 0924-0136
Keyword(s) equal channel angular processing
aluminium sheet
Summary The equal channel angular processing (ECAP) technique has been applied to an automotive aluminium alloy sheet (A6111). The technique utilizes a machine that was specially designed for this purpose at Monash University. It was determined that ECAP is able to refine the grain size of the sheet, diminish the detrimental as-rolled texture components in the sheet and retain an acceptable level of bi-axial ductility such as is required during the automotive forming process. Experiments were carried out on annealed, as-received sheets that were subjected to either one or two passes through the ECAP machine. For the second ECAP pass, the sheet could be processed in the same orientation as the first pass (route A) or it could be rotated 180° about the direction of feeding (route C). It was determined that route A produced marginally improved properties compared to sheet processed via route C, and that due to the frictional heating generated during the second pass, a significant amount of recovery occurred in the sheet such that an improved combination of texture and formability resulted after two passes compared to the same sheet exposed to only a single pass.
Language eng
DOI 10.1016/j.jmatprotec.2007.08.083
Field of Research 091207 Metals and Alloy Materials
0913 Mechanical Engineering
0912 Materials Engineering
0910 Manufacturing Engineering
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2007, Crown Copyright
Persistent URL http://hdl.handle.net/10536/DRO/DU:30075998

Document type: Journal Article
Collection: Institute for Frontier Materials
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