Microstructure and Mechanical Properties of Mg-Al-Ca-Sm Alloys at High Temperature
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.
S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim
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