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A Taylor Model Based Description of the proof stress of magnesium AZ31 during hot working

Barnett, Matthew 2003, A Taylor Model Based Description of the proof stress of magnesium AZ31 during hot working, Metallurgical and materials transactions A, vol. 34, no. 9, pp. 1799-1806.

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Title A Taylor Model Based Description of the proof stress of magnesium AZ31 during hot working
Author(s) Barnett, Matthew
Journal name Metallurgical and materials transactions A
Volume number 34
Issue number 9
Start page 1799
End page 1806
Publisher ASM International
Place of publication Materials Park, Oh.
Publication date 2003-09
ISSN 1073-5623
1543-1940
Summary A series of hot-compression tests and Taylor-model simulations were carried out with the intention of developing a simple expression for the proof stress of magnesium alloy AZ31 during hot working. A crude approximation of wrought textures as a mixture of a single ideal texture component and a random background was employed. The shears carried by each deformation system were calculated using a full-constraint Taylor model for a selection of ideal orientations as well as for random textures. These shears, in combination with the measured proof stresses, were employed to estimate the critical resolved shear stresses for basal slip, prismatic slip, ⟨c+a⟩ second-order pyramidal slip, and { } twinning. The model thus established provides a semianalytical estimation of the proof stress (a one-off Taylor simulation is required) and also indicates whether or not twinning is expected. The approach is valid for temperatures between ∼150 °C and ∼450 °C, depending on the texture, strain rate, and strain path.
Notes Copyright 2003, ASM International. This paper was published in Metallurgical and materials transactions A, Vol. 34, Issue 9, pp. 1799-1806 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 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2003, ASM International
Persistent URL http://hdl.handle.net/10536/DRO/DU:30002055

Document type: Journal Article
Collections: School of Engineering and Technology
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