Phase equilibria in the Ti-Al-Cr system at 1000 °C

被引：7

作者：

Xu, Shuai ^{[1
,2
]}

Zhang, Heng ^{[1
]}

Yang, Gang ^{[1
]}

Liang, Yongfeng ^{[1
]}

Xu, Xiangjun ^{[3
]}

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] Guangdong Technion Israel Inst Technol, Mat & Engn Sci Program, Shantou 515063, Guangdong, Peoples R China

[3] Yangtze Normal Univ, Sch Mat Sci & Engn, Chongqing 408100, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 826卷

基金：

中国国家自然科学基金;

关键词：

TiAl alloy; Intermetallics; Phase diagram; Ti-Al-Cr; Phase transformation; Diffusion multiples; NB; STABILITY; SI; ADDITIONS; TITANIUM; DIAGRAM;

D O I：

10.1016/j.jallcom.2020.154236

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：

The phase equilibria in the Ti-Al and Ti-Cr binary systems and the isothermal section of the Ti-Al-Cr ternary system at 1000 degrees C were constructed from results obtained by studying diffusion multiples and quenched alloys with a scanning electron microscope in backscattered electron mode (SEM-BSE), a scanning electron microscope equipped with energy-dispersive X-ray spectroscopy (SEM-EDX) and an electron probe microanalysis (EPMA). Seven three-phase regions and the corresponding single- or two-phase regions are observed in this work and compared to previous experimental and calculated results. The regions of the L12, beta (Ti) and beta (Cr) phases are larger than those in the prior calculated results. The three-phase regions are also different with the previous reported experimental results. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：9

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