Experimental Investigation of Phase Equilibria in the Nb-V-Hf Ternary System

被引：0
|
作者：
Zhang, J. B. [1 ]
Yu, X. [1 ]
Wu, X. [1 ]
Zhang, Y. Q. [1 ]
Pan, S. B. [1 ]
Yang, S. Y. [1 ]
Wang, C. P. [1 ]
Liu, X. J. [1 ,2 ]
机构：
[1] Xiamen Univ, Xiamen, Fujian, Peoples R China
[2] Harbin Inst Technol, Shenzhen, Guangdong, Peoples R China
来源：
JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION | 2023年 / 44卷 / 05期
基金：
中国国家自然科学基金;
关键词：
isothermal section; microstructure; Nb-V-Hf; phase diagram; MICROSTRUCTURE; OXIDATION; ADDITIONS; AL; TI;
D O I：
10.1007/s11669-023-01071-x
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, the phase equilibria of the Nb-V-Hf ternary system at 1300, 1100 and 1000 degrees C were experimentally investigated by means of back-scattered electron imaging, electron probe microanalysis, and x-ray diffraction. The results show that one ternary Laves compound with a hexagonal C14 structure is found in the isothermal sections that were studied. The bcc phase forms a large continuous solid solution, and no phase separation occurs at 1000 degrees C as had been claimed in the literature. As the temperature rises from 1000 to 1300 degrees C, the bcc structure can be observed in the Hf-V side, and the phase region of C15 reduces.
引用
收藏
页码：669 / 678
页数：10
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