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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 941-944The Effect of Mixed RE Elements on Microstructure...

The Effect of Mixed RE Elements on Microstructure and Mechanical Properties of Die-Cast AZ91D Alloy

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Abstract:

The effect of mixed RE elements (Y, Nd, Gd ) on the microstructure and tensile properties of die-cast AZ91D alloy were investigated. The results indicated that the content of mixed RE elements lead to the change of the formation of Al_▔RE compounds and reduction of the fraction of β-Mg₁₇Al₁₂ phase. The grain size of the alloy added 1.0wt. % RE became smaller than die-cast AZ91D and AZ91D+2.0wt. % RE alloys. The UTS of die-cast AZ91D+xRE(x=0 wt. %, 1.0wt. %, 2.0 wt. %) alloys were 204MPa, 194MPa, 203.6MPa at room temperature, respectively. Moreover, RE addition resulted in fracture behaviors changed.

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Materials and Processes Technologies V

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Periodical:

Advanced Materials Research (Volumes 941-944)

Pages:

59-65

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.941-944.59

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Online since:

June 2014

Authors:

Jia Wei Yuan, Xing Gang Li*, Kui Zhang, Yong Jun Li, Ming Long Ma, Guo Liang Shi, Meng Li

Keywords:

AZ91D Alloy, Mechanical Property, Microstructure, Re Elements

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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