Study on Mechanical Properties at High Temperatures and Microstructure of Mg-12Gd-3Y-0.5Zr Magnesium Alloy

Tian Dong Cao; Xiao Ming Yang

doi:10.4028/www.scientific.net/AMR.997.618

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 997Study on Mechanical Properties at High...

Study on Mechanical Properties at High Temperatures and Microstructure of Mg-12Gd-3Y-0.5Zr Magnesium Alloy

Abstract:

In this paper, tensile tests were carried out on the as-rolled and heat-treated Mg-12Gd-3Y-0.5Zr magnesium alloy at different temperatures. Tendency of tensile strength vs temperature was investigated and strengthening mechanism was discussed. It shows that both as-rolled and heat-treated Mg-12Gd-3Y-0.5Zr magnesium alloy have good mechanical properties at high temperatures. The reason why they have poor tension-compression asymmetry was discussed by their texture analysis. It is indicated that solution strengthening and precipitation strengthening were main strengthening mechanisam, and RE additons improve their thermal stability which lead to their high tensile strength at high temperatures.

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Periodical:

Advanced Materials Research (Volume 997)

Pages:

618-623

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.997.618

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Online since:

August 2014

Authors:

Tian Dong Cao, Xiao Ming Yang*

Keywords:

Mechanical Property, Mg-12Gd-3Y-0.5Zr Magnesium Alloy, Precipitation Strengthening, Solution Strengthening, Tensile-Compression Asymmetry

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