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Compressive Properties of Mg-3Al-2Zn-2Y Alloy at Different Strain Rates

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Abstract:

The compressive properties of Mg-3Al-2Zn-2Y alloy at room temperature at strain rates in range of 0.001s-1~4800s-1 were investigated. To the alloy compressed at 1300s-1, its basal and non-basal slip produce the mixed dislocation configuration including parallel, bended and tangled dislocation. There is significant twinning in the alloys compressed at 1800s-1 and 4800s-1. The flow stress and ultimate trength show the strain rate hardening behavior at the range of 0.001s-1~1800s-1. There appears localized deformation zones formed with recrystal grains and twin crystals in the alloy compressed at 4800s-1, whose mechanical properties are lower than those of alloy compressed at 1800s-1.

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Periodical:

Applied Mechanics and Materials (Volume 327)

Pages:

13-17

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.327.13

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Online since:

June 2013

Authors:

Hao Liang, Yun Tan, Fang Ju Zhang, Kai Zhang

Keywords:

Fracture Characteristic, Magnesium Alloy, Microstructure, Strain Rate Sensitivity

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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