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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 BarnettThe 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 processingVolume
496Issue
1-2Pagination
399 - 408Publisher
ElsevierLocation
Lausanne, SwitzerlandPublisher DOI
ISSN
0921-5093eISSN
1873-4936Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2008, Elsevier B.V.Related work
DU:30036740Usage metrics
Keywords
magnesiumtwinningtextureductilityrare earth elementsScience & TechnologyTechnologyNanoscience & NanotechnologyMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringScience & Technology - Other TopicsMaterials ScienceROLLED MAGNESIUM ALLOYSBINARY-ALLOYSGRAIN-SIZEDEFORMATIONMechanical Engineering
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