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High Temperature Tensile Properties of Mg-5Li-3Al-1.5Zn-2RE Alloys

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Abstract:

In this paper, the high temperature tensile properties of the LAZ532-2RE alloy prepared by hot extruded processing after vacuum casting was investaged. The tensile properties of the extruded LAZ532-2RE alloy specimens were tested at different temperature with different strain rate. The microstructures near the fractured surfaces were observed using microscope in order to investigate the dominant deformation mechanism. The activation energy was calculated to explain the high temperature deformation mechanism. The result indicated that the strength of LAZ532-2RE alloy was high at the temperature range from 398K to 423K. Meanwhile, the fracture elongation of the alloy reaches 121% at 523K under strain rate 1×10-3s-1.

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Periodical:

Applied Mechanics and Materials (Volumes 182-183)

Pages:

189-193

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.182-183.189

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Online since:

June 2012

Authors:

Ting Qu Li, M. Gao, S.H. Wang, Zhan Yi Cao

Keywords:

High Temperature Tensile, Magnesium-Lithium Alloy, Microstructure, Superplasticity

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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