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(a)-(d); Bright field images of spheroidal graphite observed in Ni-C-Mg sample of Exp. 1. (b); Magnified image of a center part of the spheroidal graphite shown in (a).
Source publication
The formation mechanism of spheroidal graphite (S.G.) in high purity Ni–C and Ni–C–Mg alloys cooled ultra-rapidly from the liquid state at four different rates (Exp. 1–Exp. 4) was investigated. The cooling rate increased from 2×10⁴ to 5×10⁵ (K/s) in the order of the experimental number. Contrary to the previous result on S.G. in Ni–C alloy with imp...
