Microstructures and Mechanical Properties of Mg-Al-Zn-Y Alloys

Abstract:

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The microstructures and mechanical properties of quasicrystal reinforced Mg-Al-Zn-Y alloys with different Y and Zn contents were investigated. The results show that I-phases and Mg17Al12 phases form in all alloys. When Y content exceeds 1.0 at.%, the blocky Al2Y particles form, and it is disadvantageous to improve tensile strength and elongation rate. The tensile failure modes of Mg-Al-Zn-Y alloys are quasi-cleavage fracture. The tensile strength and elongation rate increase firstly and then decrease with increasing Y and Zn contents. When Y content reaches 1.0 at.%, the tensile strength and elongation rate achieve the highest values.

Info:

Periodical:

Advanced Materials Research (Volumes 311-313)

Edited by:

Zhongning Guo

Pages:

697-701

DOI:

10.4028/www.scientific.net/AMR.311-313.697

Citation:

Y. B. Zhang et al., "Microstructures and Mechanical Properties of Mg-Al-Zn-Y Alloys", Advanced Materials Research, Vols. 311-313, pp. 697-701, 2011

Online since:

August 2011

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Price:

$35.00

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