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

页码：669 / 678

页数：10

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