Microstructures and Mechanical Properties of AJ62 Magnesium Alloy with Y and Nd Elements

Abstract:

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A series of Mg-6Al-2Sr-1.5Y-xNd (x=0, 0.3, 0.6, 0.9, 1.2) alloy samples were prepared and their microstructures were observed and mechanical properties were measured. The existing forms of Y and Nd were studied. The effects of Y and Nd on microstructure and mechanical properties of AJ62 alloy were investigated. The results show that the main existing forms of Y and Nd in AJ62 alloy are Al2Y and Al2Nd. The combined addition of rare earth Y and Nd can refine α-Mg matrix obviously and reduce the amount of the β-Mg17Al12 phases; after solid solution treatment, the tensile strength of the alloys rise first and fall later with increasing content of Nd. When the content of Nd is about 0.6%wt, the values of tensile strengthes are up to the maximum both at room temperature and at 448 K.

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Periodical:

Edited by:

Yafang Han, Fusheng Pan, Jianmao Tang, Chungen Zhou

Pages:

253-259

DOI:

10.4028/www.scientific.net/MSF.686.253

Citation:

X. Ning et al., "Microstructures and Mechanical Properties of AJ62 Magnesium Alloy with Y and Nd Elements", Materials Science Forum, Vol. 686, pp. 253-259, 2011

Online since:

June 2011

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$35.00

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