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Microstructural features of rolled mg-3Al-1Zn

Barnett, Matthew, Keshavarz, Zohreh and Nave, Mark 2005, Microstructural features of rolled mg-3Al-1Zn, Metallurgical and materials transactions A, vol. 36A, no. 7, pp. 1697-1704.

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Title Microstructural features of rolled mg-3Al-1Zn
Author(s) Barnett, Matthew
Keshavarz, Zohreh
Nave, Mark
Journal name Metallurgical and materials transactions A
Volume number 36A
Issue number 7
Start page 1697
End page 1704
Publisher ASM International
Place of publication Materials Park, Oh.
Publication date 2005-07
ISSN 1073-5623
1543-1940
Keyword(s) annealing
metal deformation
magnesium alloys
hot rolling
optical microscopy
recrystallization (metallurgy)
Summary The microstructures of hot- and cold-rolled Mg-3Al-1Zn (AZ31) are examined using scanning electron and optical microscopy. It is shown that the microstructures following multipass hot rolling and annealing are more uniform than those formed by heavy single pass rolling and annealing. The importance of twins in producing intragranular recrystallization is evident, although the most dominant nucleation site is grain boundaries. The cold-rolled structure after a rolling reduction of 15 pct is dominated by the presence of deformation twins. Twin trace analysis suggests that approximately two thirds of the twins are a form of “c-axis compression” twin. A number of “c-axis tension” twins were also observed and additional in-situ scanning electron microscopy experiments were performed to confirm earlier observations that suggest these twins can form after deformation, during unloading.
Notes Copyright 2003, ASM International. This paper was published in Metallurgical and materials transactions A, Vol. 36A, Issue 7, pp. 1697-1704] and is made available as an electronic reprint with the permission of ASM International. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means,duplications of any material in this paper for a fee or for commercial purposes, or modification of the content of this paper are prohibited.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 870302 Metals (e.g. Composites, Coatings, Bonding)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2005, ASM International
Persistent URL http://hdl.handle.net/10536/DRO/DU:30003053

Document type: Journal Article
Collections: School of Engineering and Technology
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Created: Mon, 07 Jul 2008, 08:42:00 EST