Separation of Fe-Cu melts upon graphite wetting

Abstract

Temperature and time dependences are plotted for contact angles upon graphite wetting by Fe-Cu melts with copper contents of 20, 40, and 60 at %. Optical and electron microscopy methods are used to perform qualitative and quantitative metallographic analyses of Fe-Cu-C alloys, which result from the interaction of Fe-Cu melts with graphite under wetting conditions

Statistics and Thermodynamics of Fe-Cu Alloys at High Temperatures

“…(13). Nonergodic microheterogeneity in Fe-Cu liquid system was discovered in [2] by viscosity measurements, and justified in [8]. Note, that dashed lines do not correspond to any line of equilibrium phase transition.…”

“…One can see that the diagram is reproduced rather well. The lower dashed line corresponds to the phase separation [8] in undercooled liquid. The upper dashed curve eliminates area, where nonergodic microheterogeneity [6] takes place (shadowed area in fig.2).…”

Influence of copper additives on the viscosity and stratification of iron melt

“…In this approach, we assume that a solution of copper in iron that is uniform at the atomic level is not formed immediately on passing through the macrostratifica tion peak [15]. Rather, the microstratified state per sists over some temperature range.…”