The evolution of homogeneity during processing of commercial purity aluminium by ECAP
The evolution of homogeneity during processing of commercial purity aluminium by ECAP
Billets of a commercial purity aluminium Al-1050 alloy were processed by equal-channel angular pressing (ECAP) for up to a maximum of 6 passes. Following processing, the billets were sectioned and hardness measurements were recorded on both longitudinal and transverse sections. These measurements showed the hardness increases significantly in the first pass and continues to increase by small amounts in subsequent passes. Initially, there are regions of lower hardness running in bands near the top and bottom surface of each billet. The region of lower hardness near the upper surface disappears with increasing numbers of passes but near the bottom surface the lower hardness remains even after 6 passes. The results show that, neglecting the small region near the bottom of the billet, there is an excellent potential for achieving microstructural homogeneity within the Al-1050 alloy after pressing through a sufficient number of passes in ECAP.
446-451
Alhajeri, Saleh N.
4d3f50b6-87ab-4690-87dd-bea08fb1c77f
Kawasaki, M.
d0ce18b9-8403-4db2-9cb2-3a6165f288a6
Gao, N.
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Langdon, T G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
2011
Alhajeri, Saleh N.
4d3f50b6-87ab-4690-87dd-bea08fb1c77f
Kawasaki, M.
d0ce18b9-8403-4db2-9cb2-3a6165f288a6
Gao, N.
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Langdon, T G
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Alhajeri, Saleh N., Kawasaki, M., Gao, N. and Langdon, T G
(2011)
The evolution of homogeneity during processing of commercial purity aluminium by ECAP.
Materials Science Forum, 584-586, .
(doi:10.4028/www.scientific.net/MSF.584-586.446).
Abstract
Billets of a commercial purity aluminium Al-1050 alloy were processed by equal-channel angular pressing (ECAP) for up to a maximum of 6 passes. Following processing, the billets were sectioned and hardness measurements were recorded on both longitudinal and transverse sections. These measurements showed the hardness increases significantly in the first pass and continues to increase by small amounts in subsequent passes. Initially, there are regions of lower hardness running in bands near the top and bottom surface of each billet. The region of lower hardness near the upper surface disappears with increasing numbers of passes but near the bottom surface the lower hardness remains even after 6 passes. The results show that, neglecting the small region near the bottom of the billet, there is an excellent potential for achieving microstructural homogeneity within the Al-1050 alloy after pressing through a sufficient number of passes in ECAP.
Text
Mat_Sci_Fourm_584-2008-446_Saleh.pdf
- Accepted Manuscript
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Published date: 2011
Organisations:
Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 187539
URI: http://eprints.soton.ac.uk/id/eprint/187539
ISSN: 1662-9752
PURE UUID: f0381dc9-5abb-40e1-bb09-74af0830ba6b
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Date deposited: 17 May 2011 12:58
Last modified: 15 Mar 2024 03:13
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Author:
Saleh N. Alhajeri
Author:
M. Kawasaki
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