An unusual extrusion texture in Mg-Gd-Y-Zr alloys
An unusual extrusion texture in Mg-Gd-Y-Zr alloys
Texture evolution is studied by EBSD in Mg–9Gd–4Y–0.4Zr (GW94), Mg–5Gd–4Y–0.4Zr (GW54), and Mg–5Gd–0.4Zr (GW50) alloys after processing with two extrusion-ratios of 19:1 and 8:1. While the alloys show common extrusion textures at the low extrusion-ratio of 8:1, an unusual extrusion texture is observed in the GW94 alloy at the high extrusion-ratio of 19:1 with the (0001) basal planes aligned perpendicular to the extrusion axis. This unusual texture decreases at lower extrusion-ratios and/or lower alloy contents. It is proposed that rare-earth (RE) elements modify the texture by retarding recrystallization in solute drag effects on grain boundaries and pinning effects of RE-rich precipitates.
unusual, extrusion, texture, mg-gd-y-zr, alloys
1044-1049
Alizadeh, Reza
12ca94ae-ee4d-47c4-b99c-ef27b6187027
Mahmudi, Reza
d3db324a-867a-4e9f-91be-b103fc11e22d
Ngan, Alfonso H.W.
44dfeaba-996b-4379-b2d0-fae94af5bd8f
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
June 2016
Alizadeh, Reza
12ca94ae-ee4d-47c4-b99c-ef27b6187027
Mahmudi, Reza
d3db324a-867a-4e9f-91be-b103fc11e22d
Ngan, Alfonso H.W.
44dfeaba-996b-4379-b2d0-fae94af5bd8f
Langdon, Terence G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
Alizadeh, Reza, Mahmudi, Reza, Ngan, Alfonso H.W. and Langdon, Terence G.
(2016)
An unusual extrusion texture in Mg-Gd-Y-Zr alloys.
Advanced Engineering Materials, 18 (6), .
(doi:10.1002/adem.201500516).
Abstract
Texture evolution is studied by EBSD in Mg–9Gd–4Y–0.4Zr (GW94), Mg–5Gd–4Y–0.4Zr (GW54), and Mg–5Gd–0.4Zr (GW50) alloys after processing with two extrusion-ratios of 19:1 and 8:1. While the alloys show common extrusion textures at the low extrusion-ratio of 8:1, an unusual extrusion texture is observed in the GW94 alloy at the high extrusion-ratio of 19:1 with the (0001) basal planes aligned perpendicular to the extrusion axis. This unusual texture decreases at lower extrusion-ratios and/or lower alloy contents. It is proposed that rare-earth (RE) elements modify the texture by retarding recrystallization in solute drag effects on grain boundaries and pinning effects of RE-rich precipitates.
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More information
e-pub ahead of print date: 3 January 2016
Published date: June 2016
Keywords:
unusual, extrusion, texture, mg-gd-y-zr, alloys
Organisations:
Engineering Mats & Surface Engineerg Gp, Engineering Science Unit, Faculty of Engineering and the Environment
Identifiers
Local EPrints ID: 388014
URI: http://eprints.soton.ac.uk/id/eprint/388014
ISSN: 1438-1656
PURE UUID: 89b4557a-08a4-4f75-ba3a-e9b86f5ab9dd
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Date deposited: 17 Feb 2016 15:32
Last modified: 15 Mar 2024 03:14
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Contributors
Author:
Reza Alizadeh
Author:
Reza Mahmudi
Author:
Alfonso H.W. Ngan
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