M. Ravi et al., A STUDY OF THE INFLUENCE OF MISCHMETAL ADDITIONS TO AL-7SI-0.3MG (LM-25 356) ALLOY/, Metallurgical and materials transactions. A, Physical metallurgy andmaterials science, 27(5), 1996, pp. 1283-1292
This article deals with the effect of 0.25-1.5 wt pct mischmetal (MM)
addition on the mechanical properties, microstructure, electrical cond
uctivity, and fracture behavior of cast Al-7Si-0.3Mg (LM 25/356) alloy
. Modification of eutectic silicon by MM is compared with strontium mo
dification in terms of microstructure, mechanical properties, and fadi
ng behavior. Loss of magnesium encountered on holding the molten alloy
and its resultant effect on mechanical properties of alloys modified
with MM and Sr are compared with those in the unmodified alloy.