Phase relations in the samarium-poor SmCoFe system

The phase equilibria in the transition-metal-rich area of the ternary SmCoFe system have been investigated to determine the Fe solubility in those intermetallic phases occurring in the binary SmCo system. Complete miscibility of Co and Fe is found for the three phases Sm 2(Co, Fe) 17, Sm(Co, Fe)...

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Bibliographic Details
Published in:Journal of the less-common metals 1985-08, Vol.110 (1), p.159-170
Main Authors: Schneider, G., Henig, E.-Th, Lukas, H.L., Petzow, G.
Format: Article
Language:English
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Summary:The phase equilibria in the transition-metal-rich area of the ternary SmCoFe system have been investigated to determine the Fe solubility in those intermetallic phases occurring in the binary SmCo system. Complete miscibility of Co and Fe is found for the three phases Sm 2(Co, Fe) 17, Sm(Co, Fe) 3, and Sm(Co,Fe) 2; whereas only limited Fe solubility exists in SmCo 5, Sm 2Co 7, Sm 9Co 4, and Sm 3Co. No ternary phase forms. Computer calculations of the binary systems SmCo, SmFe and CoFe were carried out using all the thermodynamic and phase diagram data from the literature. On the basis of this description the ternary SmCoFe system was extrapolated and compared with our own experimental results.
ISSN:0022-5088
DOI:10.1016/0022-5088(85)90317-0