Phase Diagram in Iron-rich Corner of the Fe-Cr-Mo-V-C System below 1000 K

• Autoři: KROUPA Aleš; COUFALOVÁ Martina; HAVRÁNKOVÁ Jitka; COUFALOVÁ Martina; SVOBODA Milan; VŘEŠŤÁL Jan
• Rok publikování: 2001
• Druh: Článek v odborném periodiku
• Časopis / Zdroj: Journal of Phase Equilibria
• Fakulta / Pracoviště MU: Fakulta informatiky
• Obor: Termodynamika
• Klíčová slova: Thermodynamics; Phase Diagrams; Iron; Chromium; Molybdenum; Vanadium; Carbon
• Popis: Relevant experimental phase equilibria were used with the THERMOCALC program to refine thermodynamic parameters for low-temperature region, in the steels with composition 0.4 to 2.5 wt.% Cr, 0 to 1 wt.% Mo, and 0 to 0.5 wt.% V. The refined parameters were used to calculate phase relationships, which were then compared with experimental results. Results of experiments indicate that M7C3 replaces M23C6 carbides in the temperature region betweeen 773 and 873 K. Similar behavior was also found for molybdenum-rich phases M6C and M2C. Some modifications of existing thermodynamic parameters in the low temperature region were necessary.

Související projekty

• Termodynamika rovnovážných stavů a kinetika fázových transformací v soustavách přechodových kovů s N a C
• Kinetika precipitace karbidů v Cr-Mo ocelích