Experimental Investigation on the Phase Equilibria of the Nb-Ti-Si-B System at 1500 °C

Zhiping Sun; Ying Yang; Xiping Guo

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Experimental Investigation on the Phase Equilibria of the Nb-Ti-Si-B System at 1500 °C

机译：Nb-Ti-Si-B体系在1500°C下相平衡的实验研究

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The phase equilibria at 1500 °C of the Nb-Ti-Si-B quaternary at the Nb-rich region were carefully studied. Seven alloys were arc-melted and subsequently annealed at 1500 °C for 150 h. BSE image, XRD and EPMA results show that Nbss + T2 + Nb_3B_2, Nbss + T2 + Nb_3Si and Nbss + T2 + Nb_3B_2 + Nb_3Si were present in these alloys. Extensive solubility of Ti and Si were found in the Nb_3B_2 phase. The experimental findings were compared favorably with the calculated phase equilibria. The phase equilibria in the Nb-rich region of the Nb-Ti-Si-B system have Nbss + T2, Nbss + T2 + Nb_3B_2, Nbss + T2 + Nb_3Si and Nbss + T2 + Nb_3B_2 + Nb_3Si. This work provides important guide lines on the effect of B addition to the microstructure of the Nb-rich Nb-Ti-Si alloys.

机译：仔细研究了富Nb区域Nb-Ti-Si-B季铵盐在1500°C时的相平衡。将七种合金电弧熔化，然后在1500°C退火150 h。 BSE图像，XRD和EPMA结果表明，这些合金中存在Nbss + T2 + Nb_3B_2，Nbss + T2 + Nb_3Si和Nbss + T2 + Nb_3B_2 + Nb_3Si。在Nb_3B_2相中发现了Ti和Si的广泛溶解性。实验结果与计算出的相平衡进行了比较。 Nb-Ti-Si-B系统的富Nb区域中的相平衡为Nbss + T2，Nbss + T2 + Nb_3B_2，Nbss + T2 + Nb_3Si和Nbss + T2 + Nb_3B_2 + Nb_3Si。这项工作为富Nb的Nb-Ti-Si合金的微观结构中B的添加提供了重要的指导。

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《Journal of Phase Equilibria and Diffusion》 |2011年第5期|共5页
作者
Zhiping Sun; Ying Yang; Xiping Guo;
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正文语种 eng
中图分类金属学（物理冶金）;
关键词
CALPHAD approach; experimental phase equilibria; quaternary; refractory materials;

机译：CALPHAD方法;实验相平衡;四元;耐火材料;

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1. Experimental Investigation on the Phase Equilibria of the Nb-Ti-Si-B System at 1500 °C [J] . Zhiping Sun, Ying Yang, Xiping Guo Journal of Phase Equilibria and Diffusion . 2011,第5期

机译：Nb-Ti-Si-B体系在1500°C下相平衡的实验研究
2. The U-Nb-Al ternary system: experimental and simulated investigations of the phase equilibria and study of the crystal structure and electronic properties of the intermediate phases [J] . Moussa Chantal, Berche Alexandre, Pasturel Mathieu, Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2017,第Null期

机译：U-Nb-Al三元体系：相平衡的实验和模拟研究以及中间相的晶体结构和电子性质的研究
3. Experimental Investigations of Phase Equilibria of MnS Containing Sub-systems in the MnO-SiO_2-AI_2O_3-MnS System [J] . Dae-Hee WOO, Youn-Bae KANG, Henri GAYE, ISIJ international . 2009,第10期

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4. EXPERIMENTAL INVESTIGATION OF PHASE EQUILIBRIA OF SUBSYSTEMS IN THE MnO-SiO_2-Al_2O_3-MnS SYSTEM [C] . Dae-Hee Woo, Henri Gaye, Hae-Geon Lee International Conference on Molten Slags,Fluxes and Salts . 2009

机译：MNO-SIO_2-AL_2O_3-MNS系统中子系统相平衡的实验研究
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8. Phase Equilibria Investigations of Binary, Ternary, and Higher Order Systems. Part Iii. Phase Equilibria Studies in the Nb-Ta-C System [R] . Booker, P. H., Rudy, E. 1970

机译：二元，三元和高阶系统的相平衡研究。第一部分。 Nb-Ta-C系统的相平衡研究

Experimental Investigation on the Phase Equilibria of the Nb-Ti-Si-B System at 1500 °C

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