The effect of Mn-rich precipitates on the strength of AZ31 extrudates

Stanford, Nicole and Atwell, Dale 2013, The effect of Mn-rich precipitates on the strength of AZ31 extrudates, Metallurgical and materials transactions A, vol. 44, no. 10, pp. 4830-4843, doi: 10.1007/s11661-013-1817-5.

Attached Files
Name Description MIMEType Size Downloads

Title The effect of Mn-rich precipitates on the strength of AZ31 extrudates
Author(s) Stanford, Nicole
Atwell, Dale
Journal name Metallurgical and materials transactions A
Volume number 44
Issue number 10
Start page 4830
End page 4843
Total pages 14
Publisher Springer
Place of publication Berlin, Germany
Publication date 2013-10
ISSN 1073-5623
Summary The commercial magnesium alloy AZ31 has been subjected to a range of solution treatment regimes. These have then been extruded and their microstructure, texture, and precipitate populations characterized along with their mechanical properties. During the solution treatment, Mn-enriched particles develop and these remain largely unchanged throughout subsequent processing steps. A direct link between grain size and texture has been found, with coarser-grained specimens showing sharper textures. VPSC modeling has been used to quantify the effect of texture on the tensile yield strength, and it has been found that sharper textures have larger tensile yield strengths. Since coarser grain sizes have reduced Hall–Petch hardening, but have an additional texture-strengthening component, a region on the Hall–Petch plot for tension has been identified in which there is an insensitivity of strength to grain size. This has been quantitatively modeled and a texture-modified Hall–Petch plot for tension has been developed. The Mn-rich particles have also been shown to provide precipitate strengthening to the alloy of up to 40 MPa. The compressive behavior was clearer, with the compressive yield strength being directly correlated to grain size and unaffected by texture or precipitation hardening.
Language eng
DOI 10.1007/s11661-013-1817-5
Field of Research 109999 Technology not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
Persistent URL

Document type: Journal Article
Collection: Institute for Frontier Materials
Connect to link resolver
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 18 times in TR Web of Science
Scopus Citation Count Cited 22 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 129 Abstract Views, 3 File Downloads  -  Detailed Statistics
Created: Tue, 27 Aug 2013, 12:05:33 EST

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