Microstructure and Mechanical Properties of Mg-Al-Ca-Sm Alloys at High Temperature

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The aims of this research are to investigate the effect of Sm addition in Mg-Al-Ca alloys on microstructure and mechanical properties. Sm addition to Mg-5Al-3Ca based alloys results in the change from dendritic to equiaxed grain morphorlogy and formation of Al-Sm rich itermetallic compounds at grain boundary and α-Mg matrix. And these Al-Sm rich intermetallic compounds were dispersed homogeously and stabilized at high temperature. And maximum yield and ultimate strength value was obtained at Mg-5Al-3Ca-2Sm alloys at elevated temperature because of homogeneous dispersion of stable Al-Sm rich intermetallic compound at high temperature.

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Periodical:

Key Engineering Materials (Volumes 345-346)

Edited by:

S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim

Pages:

653-656

Citation:

H. T. Son et al., "Microstructure and Mechanical Properties of Mg-Al-Ca-Sm Alloys at High Temperature", Key Engineering Materials, Vols. 345-346, pp. 653-656, 2007

Online since:

August 2007

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$38.00

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