In Situ Observations of Lateral Growth Rate of δ- Phase during Solidification of Fe-0.2%C-0.6%Mn Steel
The δ-phase growth process of Fe-0.2%C-0.6%Mn steel during solidification was in-situ observed using Confocal Scanning Laser Microscope (CSLM). The effects of shape of solid/liquid interface on the growth rate were investigated. The results indicate the growth rate of concave-shaped solid/liquid interface is faster than that of convex-shaped solid/liquid interface at the beginning of δ-phase growth. The two kinds of growth rates decreased both and approached to the same gradually as the solidification continues. The intrinsic reasons were discussed in detail.
L. X. Li, "In Situ Observations of Lateral Growth Rate of δ- Phase during Solidification of Fe-0.2%C-0.6%Mn Steel", Advanced Materials Research, Vols. 562-564, pp. 216-219, 2012