Partial Redetermination of the Fe-W Phase Diagram

Abstract : The objective of the current study is to perform a careful investigation of the (Fe) and (W) solvus and of the intermetallic compounds in the Fe-W system as it could have a significant impact on higher-order systems based on this binary system. Two key alloys, Fe-14 at. pct W and Fe-50 at. pct W, and a diffusion couple were synthesized based on the literature. They were studied by long time annealing experiments with a selected heat treatment route, X-Ray diffraction analysis, and electron microprobe analysis with a careful control of impurity levels of C, Si, and O. The two intermetallic phases mu-Fe7W6 and lambda-Fe2W are characterized and the composition range of the mu-Fe7W6 phase is specified. The phase previously reported as FeW is most probably a ternary carbide with low carbon content. An accurate determination of the solubility of W in alpha Fe and of Fe in alpha W is presented.
Type de document :
Article dans une revue
Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2013, 44A (7), pp.2996-3003. 〈10.1007/s11661-013-1658-2〉
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https://hal.archives-ouvertes.fr/hal-00850228
Contributeur : Yannick Champion <>
Soumis le : lundi 5 août 2013 - 17:54:07
Dernière modification le : lundi 7 mai 2018 - 09:51:16

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A. Antoni-Zdziobek, T. Commeau, J.M. Joubert. Partial Redetermination of the Fe-W Phase Diagram. Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2013, 44A (7), pp.2996-3003. 〈10.1007/s11661-013-1658-2〉. 〈hal-00850228〉

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