Factors influencing superplastic behavior in a magnesium ZK60 Alloy processed by equal-channel angular pressing


Figueiredo, Roberto B. and Langdon, Terence G. (2009) Factors influencing superplastic behavior in a magnesium ZK60 Alloy processed by equal-channel angular pressing. Materials Science and Engineering: A, 503, (1-2), 141-144. (doi:10.1016/j.msea.2008.04.080).

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Description/Abstract

Processing by equal-channel angular pressing was used to refine the grain size of a magnesium ZK60 alloy to ~0.8 μm and introduce a superplastic capability. Superplastic elongations up to >1000% were achieved at temperatures of 450 and 473 K but the superplastic behavior was lost at 493 K because of grain growth. The strain rate sensitivity under optimum superplastic conditions was measured as ~0.5 which is consistent with conventional superplastic flow.

Item Type: Article
Additional Information: International Symposium on Bulk Nanostructured Materials: from Fundamentals to Innovation, BNM 2007
ISSNs: 0921-5093 (print)
Related URLs:
Keywords: equal-channel angular pressing, grain stability, magnesium: superplasticity, strain rate sensitivity
Subjects: T Technology > TN Mining engineering. Metallurgy
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering
ePrint ID: 67627
Date Deposited: 28 Aug 2009
Last Modified: 27 Mar 2014 18:48
URI: http://eprints.soton.ac.uk/id/eprint/67627

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