Microstructure Study of Undercooled Hypereutectic Cu95Cr5 Alloys
Microstructure of Cr-rich phase in undercooled hypereutectic Cu95Cr5 alloys was studied by using arc melting, electromagntic levitation melting and splat quenching. The results showed that the alloys generally have a microstructure consisting of a fine Cr-rich dendrites in a Cu-rich matrix. Even there existed strong electromagnetic stirring during solidification process, the nonhomogeneous Cr-rich dendrites were observed in electromagnetic levitation melted alloys. However, fine homogenous primary Cr-rich particles or equiaxed Cr-rich grains distributed in the Cu-rich matrix in splat quenched alloys.
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Z. M. Zhou et al., "Microstructure Study of Undercooled Hypereutectic Cu95Cr5 Alloys", Advanced Materials Research, Vols. 239-242, pp. 691-694, 2011