Microstructure and Mechanical Properties of Mg-9Al-6.5Ca-3Zn-0.6Mn-XNd Alloys Prepared by Spray Forming

Guo Wei Zhang; Zheng Chen; Wei Chen; Hai Ying Xin; Jing Zhai; An Zhen Guo; Li Ma; Gang Chen

doi:10.4028/www.scientific.net/AMM.117-119.1447

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 117-119Microstructure and Mechanical Properties of...

Microstructure and Mechanical Properties of Mg-9Al-6.5Ca-3Zn-0.6Mn-XNd Alloys Prepared by Spray Forming

Abstract:

The Mg-9Al-3Zn-0.6Mn-xNd alloys, preformed with φ300mm size, has been prepared by spray forming technology under a protective atmosphere. The microstructure and mechanical properties have been investigated by XRD, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and strengths tested mechine. As a result, the precipitate phases in the alloys were the finest when the Nd content was 1% compared the alloys with the Nd content were 2% and 3%, the size of precipitation phases are between 1-2um and there are phases like Mg₂Ca，Al₂Ca，and MgZn₂ in the alloys. After extrusion, recrystallization microstructures were found in the alloys. The tensile strengths are between 400-450MPa and the yield strengths are between 350-370MPa respectively as the differences content of Nd in the alloys after heat treatment.

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Periodical:

Applied Mechanics and Materials (Volumes 117-119)

Pages:

1447-1452

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.117-119.1447

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Online since:

October 2011

Authors:

Guo Wei Zhang, Zheng Chen, Wei Chen, Hai Ying Xin, Jing Zhai, An Zhen Guo, Li Ma, Gang Chen

Keywords:

As-Extrusion, Magnesium Alloy, Recrystallization, Spray Forming

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