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Effects of Pulsed Magnetic Field on the Microstructure and Mechanical Properties of Mg97Y2Zn1 Alloy

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Abstract:

Effect of pulsed magnetic field treatment on the microstructure and mechanical properties of Mg97Y2Zn1 alloy has been investigated. When the pulsed magnetic field is applied on the alloy in semi-solid state, the α-Mg was modified from developed dendrite to fine rosette, resulting in a refined solidification microstructure with the grain size decreased from 4 mm to 0.5 mm. The volume fraction of the second phase ( X phase) increased by about 10 %. The yield strength, fracture strength and plasticity were improved by 21 MPa, 38 MPa and 2.4 %, respectively. The improvement of mechanical properties was attributed to the refined grain size and increased volume fraction of X phase.

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Periodical:

Advanced Materials Research (Volumes 1004-1005)

Pages:

123-126

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1004-1005.123

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Online since:

August 2014

Authors:

Jian Yin*, Xiu Jun Ma, Jun Ping Yao, Zhi Jian Zhou

Keywords:

Magnesium Alloy, Mg97Y2Zn1, Pulsed Magnetic Field

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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