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The origin of 'Rare Earth' texture development in extruded Mg-based alloys and its effect on tensile ductility

journal contribution
posted on 2008-11-25, 00:00 authored by N Stanford, Matthew BarnettMatthew Barnett
The extrusion behaviour, texture and tensile ductility of five binary Mg-based alloys have been examined and compared to pure Mg. The five alloying additions examined were Al, Sn, Ca, La and Gd. When these alloys are compared at equivalent grain size, the La- and Gd-containing alloys show the best ductilities. This has been attributed to a weaker extrusion texture. These two alloying additions, La and Gd, were found to also produce a new texture peak with View the MathML source parallel to the extrusion direction. This “rare earth texture” component was found to be suppressed at high extrusion temperatures. It is proposed that the View the MathML source texture component arises from oriented nucleation at shear bands.

History

Journal

Materials science and engineering A: structural materials: properties, microstructures and processing

Volume

496

Issue

1-2

Pagination

399 - 408

Publisher

Elsevier

Location

Lausanne, Switzerland

ISSN

0921-5093

eISSN

1873-4936

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2008, Elsevier B.V.

Related work

DU:30036740