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Processing and characterization of Al-Al3Nb prepared by mechanical alloying and equal channel angular pressing

Chandran, P, Zafari, A, Lui, EW and Xia, K 2017, Processing and characterization of Al-Al3Nb prepared by mechanical alloying and equal channel angular pressing, in NanoSPD7 : Proceedings of the 7th International Conference on Nanomaterials by Severe Plastic Deformation, IOP Publishing, Bristol, Eng., pp. 1-5, doi: 10.1088/1757-899X/194/1/012008.

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Title Processing and characterization of Al-Al3Nb prepared by mechanical alloying and equal channel angular pressing
Author(s) Chandran, P
Zafari, A
Lui, EW
Xia, K
Conference name International nanoSPD Steering Commitee. Conference (7th : 2017 : Sydney, N.S.W.)
Conference location Sydney, N.S.W.
Conference dates 2017/07/02 - 2017/07/07
Title of proceedings NanoSPD7 : Proceedings of the 7th International Conference on Nanomaterials by Severe Plastic Deformation
Editor(s) [Unknown]
Publication date 2017
Series International nanoSPD Steering Commitee Conference
Start page 1
End page 5
Total pages 5
Publisher IOP Publishing
Place of publication Bristol, Eng.
Keyword(s) Al
Nb
nanoscaled precipitates
materials science
engineering
science & technology
technology
physical sciences
nanoscience & nanotechnology
polymer science
Summary Mechanically alloyed Al with immiscible elements such as Nb can lead to a uniform distribution of nanoscaled precipitates which are highly stable compared to conventional alloying and with excellent interface, resulting in significant increase in strength without problems associated with nano ceramic particles in metal matrix composites. Although immiscible, Nb can be alloyed with Al through mechanical milling, forming trialuminide (Al3Nb), either directly or upon subsequent precipitation, which possesses high strength, stiffness and stability at elevated temperatures. In the present study, Al-5 at.% Nb supersaturated solid solution was achieved after prolonged ball milling and nano Al3Nb precipitates were formed during subsequent ageing at 530°C. The Al-Al3Nb powder was consolidated by equal channel angular pressing (ECAP) at 400°C, resulting in a fully dense material with a uniform distribution of nanoscaled Al3Nb precipitates in the Al matrix.
ISSN 1757-8981
1757-899X
Language eng
DOI 10.1088/1757-899X/194/1/012008
Field of Research MD Multidisciplinary
HERDC Research category E1.1 Full written paper - refereed
ERA Research output type E Conference publication
Copyright notice ©2017, IOP Publishing Ltd
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30113922

Document type: Conference Paper
Collections: School of Engineering
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.