Paper Title:
Evolution of Microstructure and Precipitation in Heat-Treatable Aluminium Alloys during ECA Pressing and Subsequent Heat Treatment
  Abstract

The precipitation and evolution of microstructure in a spray-cast Al-7034 alloy and a commercial wrought Al-2024 alloy were studied after equal-channel angular pressing (ECAP) using transmission electron microscopy and differential scanning calorimetry (DSC). Microstructural examination showed the grain sizes of both alloys were reduced to the range of ~0.3–0.5 μm through ECAP. The DSC analysis identified the occurrence of thermal effects involving the formation, coarsening, dissolution and melting of the precipitate phases and concurrent recrystallization. The heating and ageing response of the alloys processed by ECAP was identified by micro-hardness testing of the samples after interrupted heating and ageing treatments.

  Info
Periodical
Materials Science Forum (Volumes 503-504)
Edited by
Zenji Horita
Pages
275-280
DOI
10.4028/www.scientific.net/MSF.503-504.275
Citation
N. Gao, M. J. Starink, M. Furukawa, Z. Horita, C. Xu, T. G. Langdon, "Evolution of Microstructure and Precipitation in Heat-Treatable Aluminium Alloys during ECA Pressing and Subsequent Heat Treatment", Materials Science Forum, Vols. 503-504, pp. 275-280, 2006
Online since
January 2006
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Price
$32.00
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