Effects of Ca on Microstructure and Mechanical Properties of Mg-5.5Al-1.2Y Alloy

Wen Jian Liu; Quan An Li; Zhi Chen; Xiao Jie Song

doi:10.4028/www.scientific.net/AMM.198-199.216

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 198-199Effects of Ca on Microstructure and Mechanical...

Effects of Ca on Microstructure and Mechanical Properties of Mg-5.5Al-1.2Y Alloy

Abstract:

The microstructure and mechanical properties of aged Mg-5.5Al-1.2Y magnesium alloy with Ca addition are investigated. The results show that with 1.0wt.% Ca addition, the phase of Al₂Y is refined obviously and the phase of Mg₁₇Al₁₂ has a dramatic decrease in number. And, high melting point intermetallic compounds Al₂Ca and Al₄Ca are formed. Meanwhile, the β-Mg₁₇Al₁₂ phase become more dispersed. After 1.0wt.% Ca addition, the mechanical properties of the alloy at room and elevated temperature are improved.

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Periodical:

Applied Mechanics and Materials (Volumes 198-199)

Pages:

216-219

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.198-199.216

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Online since:

September 2012

Authors:

Wen Jian Liu, Quan An Li, Zhi Chen, Xiao Jie Song

Keywords:

CA, Mechanical Property, Mg-5.5Al-1.2y Alloy, Microstructure

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