Effect of microstructures on tensile properties of AZ31 Mg alloy processed by ECAP

Yuichi Miyahara, Kazuhiko Adachi, Yasuhiro Maehara, Zenji Horita, Terence G. Langdon

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

Abstract

A commercial AZ31 Mg alloy was subjected to ECAP (equal-channel angular pressing) and the tensile properties were examined at room temperature. It is shown that the microstructure before ECAP significantly affects the performance of ECAP without breaking samples. When the initial structure before ECAP is homogeneous with equiaxed grains, subsequent ECAP is feasible at lower temperatures. The grain refinement is achieved more effectively as the temperature for ECAP is lowered and the number of ECAP pass is increased. The tensile ductility was reduced after 1 pass of ECAP at 473 K or 498 K. However, the ductility was improved with an increasing number of ECAP pass or by annealing at 473 K or 523 K after ECAP. The results demonstrate that a homogeneous distribution of fine equiaxed grains is important for ductility improvement in the AZ31 Mg alloy.

Original languageEnglish
Title of host publicationMagnesium - Science, Technology and Applications, Mg - Proceedings of the International Conference on Magnesium - Science, Technology and Applications
PublisherTrans Tech Publications Ltd
Pages473-476
Number of pages4
ISBN (Print)0878499687, 9780878499687
DOIs
Publication statusPublished - Jan 1 2005
EventInternational Conference on Magnesium - Science, Technology and Applications - Beijing, China
Duration: Sep 20 2004Sep 24 2004

Publication series

NameMaterials Science Forum
Volume488-489
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

OtherInternational Conference on Magnesium - Science, Technology and Applications
CountryChina
CityBeijing
Period9/20/049/24/04

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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