This work investigates the effect of Cr addition into the FeCoNi binder phase of the cemented carbides (WC-FeCoNi) using experimental and computational techniques. Liquid phase formation temperatures and C contents of WC-Fe-Ni-Co-Cr alloys were used as experimental results. Based on this, a thermodynamic modelling was conducted on the W-C-Fe-Ni-Co-Cr system using the CALPHAD (CALculation of PHAse Diagrams) approach. Taking into account the experimental and theoretical results, it was shown that the error in the solidus and liquidus temperatures were lower in the database generated in this work in comparison to the commercial thermodynamic databases for steels and cemented carbides. Using the database developed in the present work, the experimental data can be well reproduced.

中文翻译：

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WC-Fe-Ni-Co-Cr 硬质合金的实验研究和热力学建模


这项工作利用实验和计算技术研究了硬质合金 (WC-FeCoNi) 的 FeCoNi 粘结相中添加 Cr 的影响。使用WC-Fe-Ni-Co-Cr合金的液相形成温度和C含量作为实验结果。在此基础上，使用 CALPHAD（PHAse 图计算）方法对 WC-Fe-Ni-Co-Cr 体系进行了热力学建模。考虑到实验和理论结果，结果表明，与钢和硬质合金的商业热力学数据库相比，本工作生成的数据库中固相线和液相线温度的误差较低。使用本工作中开发的数据库，可以很好地重现实验数据。