Calcium - silicon alloy - for modifying cast iron

摘要

Spheroidal graphite cast iron is obtained by the use of a Ca-Si alloy of compn. (wt. %) 6-30 Ca, 51-66 Si, 0.2-10 Mg, 0.1-12 rare earth metals, 0-12 Ba, 0-12 Sr, 0-10 Y, 0-12 Li, 0-10 Sc, 0-10 Rb.