Deakin University
Browse

File(s) under permanent embargo

Enhanced superplasticity of magnesium alloy AZ31 obtained through equal-channel angular pressing with back-pressure

Version 2 2024-06-04, 05:23
Version 1 2015-08-20, 15:38
journal contribution
posted on 2024-06-04, 05:23 authored by Rimma LapovokRimma Lapovok, Y Estrin, MV Popov, S Rundell, T Williams
Excellent superplastic elongations (in excess of 1,200%) were achieved in a commercial cast AZ31 alloy processed by low temperature equal-channel angular pressing (ECAP) with a back-pressure to produce a bimodal grain structure. In contrast, AZ31 alloy processed by ECAP at temperatures higher than 200 °C showed a reasonably uniform grain structure and relatively low ductility. It is suggested that a bimodal grain structure is advantageous because the larger grains contribute to strain hardening thus delaying the onset of necking, while grain boundary sliding associated with small grains provides a stabilizing effect due to enhanced strain rate sensitivity. © 2008 Springer Science+Business Media, LLC.

History

Journal

Journal of materials science

Volume

43

Pagination

7372-7378

Location

Berlin, Germany

ISSN

0022-2461

eISSN

1573-4803

Language

eng

Publication classification

C Journal article, C1.1 Refereed article in a scholarly journal

Copyright notice

2008, Springer Science+Business Media, LLC

Publisher

Springer

Usage metrics

    Research Publications

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC