Partial Phase Relationships in the Zr–Nb–Fe(O) System Focused on the Nature of (Zr, Nb)4Fe2O

IF 2 4区材料科学 Q4 CHEMISTRY, PHYSICAL

Journal of Phase Equilibria and Diffusion Pub Date : 2025-10-04 DOI:10.1007/s11669-025-01203-5

Minfang Zeng, Jianlie Liang, Junyi Liang, Tonghan Yang, Guangfeng Li, Xuehong Cui, Mengyi Wang

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Abstract

The fcc-based (Zr, Nb)₂Fe phase was previously recognized as a stable compound in the Zr–Nb–Fe system. Our study shows that (Zr, Nb)₂Fe is an O-stabilized phase (Zr, Nb)₄Fe₂O. The results indicate that the (Zr, Nb)₄Fe₂O is based on the ternary Zr₄Fe₂O_x phase in the Zr–Fe–O system.This study has identified four four-phase equilibria consisting of [βZr + Zr(Nb, Fe)₂ + (Zr, Nb)₄Fe₂O + liquid], [βZr + Zr(Nb, Fe)₂ + αZr + (Zr, Nb)₄Fe₂O], [ZrFe₂ + Zr(Nb, Fe)₂ + (Zr, Nb)₄Fe₂O + liquid] and [αZr + Zr(Nb, Fe)₂ + (Zr, Nb)₄Fe₂O + ZrO₂] in the Zr–Nb–Fe(O) alloys at 1000 ℃. Based on the current experimental findings, the phase relationships of the Zr–Nb–Fe(O) system at 1000 ℃ close to the Zr–Fe side were established.

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Zr - Nb - fe (O)体系的部分相关系——以（Zr, Nb）4Fe2O性质为中心

基于fcc的（Zr, Nb）2Fe相先前被认为是Zr - Nb - fe体系中的稳定化合物。研究表明，（Zr, Nb）2Fe是o稳定相（Zr, Nb）4Fe2O。结果表明，（Zr, Nb）4Fe2O是基于Zr - fe - o体系中的三元zr4fe2o相。本研究确定了Zr - Nb - Fe(O)合金在1000℃时的四个四相平衡：[βZr + Zr(Nb, Fe)2 + (Zr, Nb)4Fe2O +液体]、[βZr + Zr(Nb, Fe)2 + αZr + Zr(Nb, Fe)2 + (Zr, Nb)4Fe2O +液体]、[αZr + Zr(Nb, Fe)2 + (Zr, Nb)4Fe2O + ZrO2]。在现有实验结果的基础上，建立了Zr-Nb-Fe (O)体系在1000℃时靠近Zr-Fe侧的相关系。

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来源期刊

Journal of Phase Equilibria and Diffusion 工程技术-材料科学：综合

CiteScore

2.50

自引率

7.10%

发文量

审稿时长

1 months

期刊介绍： The most trusted journal for phase equilibria and thermodynamic research, ASM International''s Journal of Phase Equilibria and Diffusion features critical phase diagram evaluations on scientifically and industrially important alloy systems, authored by international experts. The Journal of Phase Equilibria and Diffusion is critically reviewed and contains basic and applied research results, a survey of current literature and other pertinent articles. The journal covers the significance of diagrams as well as new research techniques, equipment, data evaluation, nomenclature, presentation and other aspects of phase diagram preparation and use. Content includes information on phenomena such as kinetic control of equilibrium, coherency effects, impurity effects, and thermodynamic and crystallographic characteristics. The journal updates systems previously published in the Bulletin of Alloy Phase Diagrams as new data are discovered.