Non-Contact Measurement of Thermophysical Properties of Fe, Fe–C, and Fe–C–Mn Alloys in Solid, Supercooled, and Stable Liquid Phases

摘要

High temperature thermophysical properties of Fe and Fe alloys with small additions of C and Mn are reported using electrostatic levitation, for the first time. Thermophysical property measurements were carried out in wide temperature ranges from 800 K to 1850 K, including solids, supercooled, and stable liquids. The small additions of C and Mn affect transformation temperatures, but not significantly other thermophysical properties, i.e. , density, volume expansion coefficient, and specific heat. Anomalous volume expansion coefficient was observed in δ -phase.