Age hardening of a sintered Al-Cu-Mg-Si-(Sn) alloy

Kent, D., Schaffer, G. B. and Drennan, J. (2005) Age hardening of a sintered Al-Cu-Mg-Si-(Sn) alloy. Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing, 405 1-2: 65-73. doi:10.1016/j.msea.2005.05.104

Author Kent, D.
Schaffer, G. B.
Drennan, J.
Title Age hardening of a sintered Al-Cu-Mg-Si-(Sn) alloy
Journal name Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing   Check publisher's open access policy
ISSN 0921-5093
Publication date 2005-09
Sub-type Article (original research)
DOI 10.1016/j.msea.2005.05.104
Volume 405
Issue 1-2
Start page 65
End page 73
Total pages 9
Editor G. Kostorz
M. Kato
Place of publication Lausanne
Publisher Elsevier Science Sa
Collection year 2005
Language eng
Subject C1
291403 Alloy Materials
670899 Other non-ferrous metals (e.g. copper, zinc)
Abstract The age hardening response of a sintered Al-3.8 wt% Cu-1.0 wt% Mg-0.70 wt% Si alloy with and without 0.1 wt% Sn was investigated. The sequence of precipitation was characterised using transmission electron microscopy. The ageing response of the sintered Al-Cu-Mg-Si-(Sn) alloy is similar to that of cognate wrought 2xxx series alloys. Peak hardness was associated with a fine, uniform dispersion of lath shaped precipitates, believed to be either the betaor Q phase, oriented along < 010 >. directions and theta' plates lying on {001}(alpha). planes. Natural ageing also resulted in comparable behaviour to that observed in wrought alloys. Porosity in the powder metallurgy alloys did not significantly affect the kinetics of precipitation during artificial ageing. Trace levels of tin, used to aid sintering, slightly reduced the hardening response of the alloy. However, this was compensated for by significant improvements in density and hardness. (c) 2005 Elsevier B.V. All rights reserved.
Keyword Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Age Hardening
Powder Metallurgy
Mg-si Alloys
Supersaturated Solid-solutions
Al-cu Alloys
Trace Additions
Q-Index Code C1

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Created: Wed, 15 Aug 2007, 05:47:36 EST