Phase equilibria of the Ti-Al-Nb system at 1300 °C

被引：23

作者：

Xu, Shuai ^{[1
]}

Xu, Yong ^{[2
]}

Liang, Yongfeng ^{[1
]}

Xu, Xiangjun ^{[3
]}

Gao, Shubo ^{[1
]}

Wang, Yanli ^{[1
]}

He, Jianping ^{[1
]}

Lin, Junpin ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

[2] Shandong Jianzhu Univ, Sch Mat Sci & Engn, Jinan 250101, Shandong, Peoples R China

[3] Yangtze Normal Univ, Sch Mech & Elect Engn, Chongqing 408100, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 724卷

基金：

中国国家自然科学基金;

关键词：

TiAl alloy; Intermetallics; Phase diagram; Microstructure; 1400-DEGREES-C ISOTHERMAL SECTION; THERMODYNAMIC ASSESSMENT; ALLOYS; TRANSFORMATIONS; MICROSTRUCTURE; REEVALUATION;

D O I：

10.1016/j.jallcom.2017.06.195

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：

Phase equilibria in the Ti-Al-Nb system at 1300 degrees C were studied using X-ray diffraction, scanning electron microscopy and electron probe microanalysis. Using the results, an isothermal section at 1300 degrees C for this system was constructed. No ternary compound was observed in this work. The isothermal section is characterized by four three-phase regions (alpha + beta + gamma, beta + gamma + sigma, sigma + delta + beta and sigma +gamma + epsilon) plus the corresponding two-phase regions. The locations and areas of the tie-triangles are different from the previous results. The homogeneity range of alpha, gamma, sigma, delta and epsilon is located along a constant Al concentration. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：339 / 347

页数：9

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