Liquidus and solidus surfaces in the quaternary Fe-Cu-Co-S system: Part II: The ternary Fe-Cu-Co system

The ternary Fe-Cu-Co system was studied within the complete range of compositions at temperature limits of 1373\ua0K to 1823\ua0K (1100 °C to 1550 °C). The system alloys were examined using such methods as differential thermal analysis, scanning electron microscopy, and electron probe microanalysis. Projections of liquidus and solidus surfaces of the Fe-Cu-Co system were plotted. Thermodynamic calculations of the ternary system isothermal sections at 1623\ua0K, 1673\ua0K, and 1723\ua0K (1350 °C, 1400 °C, and 1450 °C) were performed

Liquidus and solidus surfaces in the quaternary Fe-Cu-Co-S System. Part I: The ternary Cu-Co-S system

Phase equilibria of the ternary Cu-Co-S system were studied within liquidus–solidus temperature range in the inert atmosphere at atmospheric pressure. Integrated application of such methods as differential thermal analysis, thermogravimetry, scanning electron microscopy, and electron probe microanalysis, makes it possible to determine phase transitions temperature and equilibrium phases composition in the system with high level of accuracy. Experimental results obtained in this work for the Cu-Co-S system are presented as liquidus and solidus surfaces projections of the Cu-Co-S system. Phase transformations occurring in the system are discussed

Phase equilibria in the ternary Fe-Co-S system

The Fe-FeS-CoS-Co system has been investigated experimentally from 1073 K up to liquidus temperature. Samples of the system have been investigated using DTA/TGA, SEM/EDX, and XRD methods. Liquidus and solidus projections have been plotted based on experimental data