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Temperature Dependent Microstructure and Mechanical Behavior in AZ31 Alloy Processed by an Asymmetric Rolling

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Abstract:

An asymmetrical rolling of AZ31 alloy sheets was carried out at 473 K with a high reduction ratio of 70% in thickness prior to tensile-tests. For the as-rolled sheet, tensile tests were performed in a temperature range of 473 ~ 673 K at a constant strain rate of 1 × 10-3 s-1. Tensile elongation increases with increasing reduction ratio in the as-rolled sheets. A large elongation of above 530% was obtained in the specimen deformed at 673 K for the sheet fabricated by 70% thickness reduction. Although the extent of grain growth was remarkable in a high temperature range, the tensile elongation increases with increasing the tensile temperature.

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Periodical:

Advanced Materials Research (Volumes 26-28)

Pages:

373-376

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.26-28.373

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Online since:

October 2007

Authors:

Ha Guk Jeong, Woo Jin Kim

Keywords:

Asymmetrical Rolling, Grain Growth, Large Elongation, Microstructure

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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