Phase Relationship in the Zr-Mo-Fe(O) System (Zr > 30 at.%) at 1000 °C

IF 1.5 4区材料科学 Q4 CHEMISTRY, PHYSICAL Journal of Phase Equilibria and Diffusion Pub Date : 2023-08-08 DOI:10.1007/s11669-023-01052-0

Yule Ren, Jinming Zhu, Jianlie Liang, Jinfeng Ling, Guangfeng Li, Wen Qin, Liyang Fang, Xuehong Cui, Yuechun Fu, Yiyuan Tang

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Abstract

The impact of oxygen impurity on phase relationships in the Zr-Mo-Fe system (Zr > 30 at.%) at 1000 °C was investigated by means of x-ray diffraction, scanning electron microscopy, and energy-dispersive spectroscopy analysis. An oxygen-stabilized ternary compound γ-Zr₂(Mo,Fe), derived from Ti₂Ni type Zr₄Fe₂O, with cell parameter of a = 1.2213 nm was observed to be present in the investigated Zr-Mo-Fe alloys. The phase relationships of the Zr-Mo-Fe (O) system at 1000 °C in the Zr-rich corner consist of 3 four-phase regions, i.e., [βZr + λ-Zr(Mo,Fe)₂ + γ-Zr₂(Mo,Fe) + ZrMo₂], [βZr + λ-Zr(Mo,Fe)₂ + γ-Zr₂(Mo,Fe) + Liquid], and [λ-Zr(Mo,Fe)₂ + γ-Zr₂(Mo,Fe) + Liquid + ZrFe₂]. The previously detected Zr₉Mo₄Fe compound was not observed in this work.

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1000℃时Zr- mo - fe (O)体系(Zr > 30 at.%)的相关系

通过x射线衍射、扫描电镜和能量色散光谱分析，研究了氧杂质对Zr- mo - fe体系(Zr > 30 at.%)在1000℃时相关系的影响。由Ti2Ni型Zr4Fe2O衍生出一种氧稳定三元化合物γ-Zr2(Mo,Fe)，细胞参数为a = 1.2213 nm。Zr-Mo-Fe的相关系(O)系统在1000°C Zr-rich角落包括3四地区,例如,[βZr +λZr(钼、铁)2 +γ-Zr2(钼、铁)+ ZrMo2],[βZr +λZr(钼、铁)2 +γ-Zr2(钼、铁)+液体),和(λZr(钼、铁)2 +γ-Zr2液体(钼、铁)+ + ZrFe2]。先前检测到的Zr9Mo4Fe化合物在本工作中未观察到。

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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.