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The development of superplastic ductilities and microstructural homogeneity in a Magnesium ZK60 alloy processed by ECAP

Record type: Article

An extruded ZK60 magnesium alloy was processed by equal-channel angular pressing (ECAP) and then tested in tension at elevated temperatures. The results show the alloy is superplastic at a testing temperature of 473 K with an optimum ductility of ~1310% when using an initial strain rate of 2.0 × 10?4 s?1. The results demonstrate that optimum superplasticity is achieved at intermediate strain rates and there are decreases in the elongations to failure at both faster and slower strain rates. Microhardness measurements were taken both on the cross-sectional plane and along the axial direction after processing by ECAP. These measurements show the alloy is essentially homogeneous in the as-pressed condition.

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Citation

Figueiredo, Roberto B and Langdon, Terence G. (2006) The development of superplastic ductilities and microstructural homogeneity in a Magnesium ZK60 alloy processed by ECAP Materials Science and Engineering: A, 430, (1-2), pp. 151-156. (doi:10.1016/j.msea.2006.05.056).

More information

Published date: 2006
Keywords: equal-channel angular pressing (ecap), homogeneity, magnesium alloys, severe plastic deformation, superplasticity
Organisations: Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 43682
URI: http://eprints.soton.ac.uk/id/eprint/43682
ISSN: 0921-5093
PURE UUID: 4a342883-33f1-4261-97d1-cc4a035c4263
ORCID for Terence G. Langdon: ORCID iD orcid.org/0000-0003-3541-9250

Catalogue record

Date deposited: 26 Jan 2007
Last modified: 17 Jul 2017 15:18

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Contributors

Author: Roberto B Figueiredo

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