Experimental investigation of phase equilibria in the Ce-Fe-Ni system at 950 and 750 °C. (March 2019)

• Record Type: Journal Article
• Authors: Fartushna, I.; Mardani, M.; Khvan, A.; Cheverikin, V.; Gorshenkov, M.; Dinsdale, A.
• Is Part Of: Calphad. Volume 64(2019)
• Page Start: 284
• Page End: 291
• Publication Date: 2019-03
• Subjects: Ce-Fe-Ni system -- Experimental -- Phase diagram; Phase diagrams -- Data processing -- Periodicals; Thermochemistry -- Data processing -- Periodicals; Diagrammes de phases -- Informatique -- Périodiques; Thermochimie -- Informatique -- Périodiques; Thermodynamica; Electronic journals; 541.363
• DOI: 10.1016/j.calphad.2019.01.002
• Languages: English
• ISSNs: 0364-5916

Abstract

Abstract: The Ce-Fe-Ni system has been experimentally studied by microstructural analysis, electron microprobe analysis and X-ray diffraction over the whole concentration range. Isothermal sections at 950 and 750 °C for this system were constructed for the first time. The phase relations at 750 °C measured in this work are different from those published for 700 °C in particular because of the identification of a new binary phase Ce5 Ni19 . A continuous solid solution Ce(Fe, Ni)2 (MgCu2 -type structure, cF 24 -Fd -3 m ), was found at 750 °C, with mutual substitution of Fe and Ni atoms. The liquid phase is present in the system both at 950 and 750 °C. Almost all binary-based phases at these temperatures show wide homogeneity regions and possess a constant Ce content. Highlights: Isothermal sections at 750 °C and 950 °C were constructed for the first time. A continuous solid solution Ce(Fe, Ni)2, was found at 750 °C. The liquid phase is present in the system both at 950 and 750 °C. Almost all phases show the wide homogeneity regions at 950 and 750 °C.