Experimental and theoretical study of WC-40Fe-20Co-40Ni

• Published in: International journal of refractory metals & hard materials Vol. 102; p. 105719
• Main Authors: Soria-Biurrun, Tomas, Sánchez-Moreno, Jose M., Frisk, Karin
• Format: Journal Article
• Language: English
• Published: Shrewsbury Elsevier Ltd 01.01.2022; Elsevier BV
• Subjects: Binders (materials); C-window; Cobalt; DSC; Iron; Liquid phases; Modelling; Nickel; Phase diagram; Thermodynamic database; Thermodynamic models; WC-FeNiCo hardmetals; C-window; WC-FeNiCo hardmetals; Thermodynamic database; DSC; Phase diagram
• ISSN: 0263-4368; 2213-3917; 2213-3917
• DOI: 10.1016/j.ijrmhm.2021.105719

The liquid phase formation temperatures of the quinary system W-C-Co-Fe-Ni with a ratio of Fe:Co:Ni = 40:20:40 were determined by means of DSC analysis. Besides, the experimental C-window of this system with a binder content of 14.3 ± 2 wt% is accurately defined. Based on the experimental results, a thermodynamic modelling is carried out using the CALPHAD approach. Temperature-composition sections of the W-C-Co-Fe-Ni system with different binder contents are calculated to verify the rationality of the present modelling. There is a good correlation between the experimental and calculated results showing that the experimental data can be well reproduced by the present modelling. •The liquid phase formation temperatures of WC-FeCoNi alloys with a ratio of Fe:Co:Ni = 40:20:40 were measured by DSC.•The C-window of WC-FeNiCo alloys with a ratio of Fe:Co:Ni (in wt%) = 40:20:40 was defined accurately.•Temperature-composition sections of the W-C-Co-Fe-Ni system were provided.•The experimental results are well reproduced by the present modelling.