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2002•The Chinese Journal of Nonferrous MetalsRequires access

Superplastic deformation behavior of commercial magnesium alloy AZ31

Wenjiang Ding

Open publisher page 3 citations

Abstract

Superplastic behavior of a commercial AZ31 magnesium alloy is investigated at temperatures ranging from 623 to 723 K and strain rates ranging from 10 -5 to 10 -3?s -1. The results showed that the alloy exhibits excellent superplasticity, and the maximum elongation-to-failure reaches 314%. The alloy also shows a high strain rate sensitivity exponent of 0.4. Microstructural observations suggest that grain boundary sliding (GBS) makes a substantial contribution to the superplastic deformation, and the dynamic recrystallization is the accommodated mechanism for the deformation.

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What this paper is about

Superplastic behavior of a commercial AZ31 magnesium alloy is investigated at temperatures ranging from 623 to 723 K and strain rates ranging from 10 -5 to 10 -3?s -1. The results showed that the alloy exhibits excellent superplasticity, and the maximum elongation-to-failure reaches 314%. The alloy also shows a high strain rate sensitivity exponent of 0.4. Microstructural observations suggest that grain boundary sliding (GBS) makes a substantial contribution to the superplastic deformation, and the dynamic recrystallization is the accommodated mechanism for the deformation.

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Available abstract

Superplastic behavior of a commercial AZ31 magnesium alloy is investigated at temperatures ranging from 623 to 723 K and strain rates ranging from 10 -5 to 10 -3?s -1. The results showed that the alloy exhibits excellent superplasticity, and the maximum elongation-to-failure reaches 314%. The alloy also shows a high strain rate sensitivity exponent of 0.4. Microstructural observations suggest that grain boundary sliding (GBS) makes a substantial contribution to the superplastic deformation, and the dynamic recrystallization is the accommodated mechanism for the deformation.

Key concepts: Superplasticity, Materials science, Grain Boundary Sliding, Magnesium alloy, Metallurgy, Strain rate, Deformation mechanism, Alloy

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