Characterization of β′ Precipitate Phase in Aged Mg-12Gd-2Y-0.5Sm-0.5Sb-0.5Zr Alloy

Ke Jie Li; Quan an Li; Xiao Hui Zhang

doi:10.4028/www.scientific.net/AMR.194-196.1357

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 194-196Characterization of β′ Precipitate Phase in Aged...

Characterization of β′ Precipitate Phase in Aged Mg-12Gd-2Y-0.5Sm-0.5Sb-0.5Zr Alloy

Abstract:

The Mg-12Gd-2Y-0.5Sm-0.5Sb-0.5Zr alloy was prepared under flux protection. The morphology and crystal structure of β′ precipitate phases in aged alloy has been studied using transmission electron microscopy and X-ray diffraction. The orientation relationship between β′ precipitate and matrix could existed as [ 010]B_αB// [ 00]Bβ′B, (01 0) BαB// (020)B_β′B and (0001)B_αB was coherent with (001)B_β′B; [0001]B_αB// [001]B_β′B, (1 00)B_αB// (240)B_β′B and ( 010)B_αB was coherent with (0A^_,8EEA0)B_β′B. The HREM images indicated that the β' precipitates have a long-period ordered structure at the same time.

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Periodical:

Advanced Materials Research (Volumes 194-196)

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1357-1360

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.194-196.1357

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Online since:

February 2011

Authors:

Ke Jie Li, Quan an Li, Xiao Hui Zhang

Keywords:

HREM, Long Period Ordered Structure, Mg-Gd-Y Alloy, β′ Precipitate Phase

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