Solute Pre-Precipitation and Phase Transformation in a Mg-Zn-Gd Alloy

Li Lin; Feng Wang; Lin Yang; Li Jia Chen; Zheng Liu

doi:10.4028/www.scientific.net/AMR.152-153.864

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 152-153Solute Pre-Precipitation and Phase Transformation...

Solute Pre-Precipitation and Phase Transformation in a Mg-Zn-Gd Alloy

Abstract:

A novel precipitation sequence, super-saturated-solution → stacking faults → Mg3Gd, i.e. S.S.S. → SF → β1, was established for a Mg-3Zn-2Gd (wt%) alloy. Solute pre-precipitation can occur during the solidification of as-cast alloy and subsequent solution-treatment, resulting in the formation of lamella structures with …ABCABC… stacking sequence. The lamella structure will transform to the Mg3Gd phase, even that Mg3Gd is not the most stable phase in this serial alloys.

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Advanced Materials Research (Volumes 152-153)

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864-867

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https://doi.org/10.4028/www.scientific.net/AMR.152-153.864

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October 2010

Authors:

Li Lin, Feng Wang, Lin Yang, Li Jia Chen, Zheng Liu

Keywords:

Magnesium Alloy, Phase Transformation, Precipitation Sequence, Rare Earth (RE)

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