Study of Mg-Y-Zn rod produced by ECAP powder compaction

Rimma Lapovok, Hoi Pang Ng, Jian Feng Nie, Yuri Estrin, Suveen N. Mathaudhu

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch

1 Citation (Scopus)

Abstract

Ternary Mg-Y-Zn alloys have attracted considerable attention of researchers due to their excellent mechanical properties and unique microstructures. Microstructural variation and the resulting mechanical properties can be affected by various processing routes, particularly those involving severe plastic deformation. A relatively common approach to producing improved nanostructured magnesium alloys is based on consolidation of nanostructured powders by extrusion. A significant improvement in compaction of magnesium powders can be achieved if equal-channel angular pressing (ECAP) with back-pressure is used instead of conventional extrusion. ECAP of magnesium-based powders produced by high-energy ball milling to fully dense product can open up an avenue for developing novel alloy compositions with highly non-equilibrium local elemental concentrations not achievable through solidification from the melt. In this work, a study of microstructure and properties of a billet produced from Mg9Y2Zn1 alloy powder by ECAP-compaction with subsequent annealing was carried out. As an outcome a promising thermomechanical processing route leading to high strength and sufficient ductility was suggested.

Original languageEnglish
Title of host publicationMaterials Science and Technology Conference and Exhibition 2013, (MS&T'13)
Subtitle of host publicationMontreal, QC Canada; 27-31 October 2013
Place of PublicationWarrendale, PA, USA
PublisherMaterials Science and Technology (MS&T)
Pages1414-1422
Number of pages9
Volume2
ISBN (Print)9781629933092
Publication statusPublished - 2013
EventMaterials Science and Technology Conference 2013 - Montreal, Canada
Duration: 27 Oct 201331 Oct 2013

Conference

ConferenceMaterials Science and Technology Conference 2013
Abbreviated titleMS&T 2013
Country/TerritoryCanada
CityMontreal
Period27/10/1331/10/13

Keywords

  • Equal channel angular pressing
  • Mg-Y-Zn alloys
  • Powder

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