Thermodynamic Calculation of the Heavy Rare Earth Permanent Magnets: Fe-RE (RE=Gd, Tb, Dy, Lu) Binary Systems

Abstract:

The Fe-RE (RE=Gd, Tb, Dy, Lu) binary systems with the experimental data of phase equilibria and thermodynamic properties in the published literature were reviewed firstly. Based on available phase equilibria data and thermodynamic data, the Fe-RE (RE=Gd, Tb, Dy, Lu) binary systems were assessed thermodynamically using the CALPHAD method. As a result, further experimental investigations and thermodynamic calculations would be both required in order to develop thermodynamic database of the RE-Fe-B ternary systems, which is very useful to study the relations between alloy compositions, microstructure and magnetic properties of novel Nd-Fe-B-based permanent magnets.

• Periodical: Advanced Materials Research (Volume 1142)
• Pages: 62-68
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1142.62
• Online since: January 2017
• Authors: Xiao Long Chen, Jiang Wang, Tai Li Chen, Mao Hua Rong, Guang Hui Rao, Huai Ying Zhou
• Keywords: CALPHAD, Fe-Re Binary Systems, Phase Diagram, Thermodynamic Assessment

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