Experimental equilibria of several ?/?o?Ti?Al?Nb alloys containing ?o phase

被引：2
作者：
Yang, L. F. [1 ]
Xu, Y. [1 ]
Xu, R. F. [1 ]
Yu, M. J. [2 ]
Zhang, D. M. [1 ]
Yuan, N. Q. [1 ]
Lin, J. P. [3 ]
机构：
[1] Shandong Jianzhu Univ, Sch Mat Sci & Engn, Jinan 250101, Shandong, Peoples R China
[2] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Shandong, Peoples R China
[3] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2019年 / 6卷 / 12期
基金：
中国国家自然科学基金;
关键词：
high Nb containing Ti?Al; phase equilibrium; beta phase; morphology; isopleths section; CAST HIGH-NB; THERMAL-STABILITY; AL-NB; OMEGA-PHASE; TIAL ALLOY; TRANSFORMATIONS; MECHANISMS; EVOLUTION; EXPOSURE; NIOBIUM;
D O I：
10.1088/2053-1591/ab58e6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The phase equilibria of several (6, 8, 10) at% Nb?TiAl alloys are experimentally determined by the morphologic, crystallographic and thermal analysis methods. The thermodynamically determined phase equilibria reveal that ?(o) phase transforms from ?(2) phase, having no ?/?(o) phase retained at ambient temperature. While, the ?/?(o) phase are experimentally observed in the samples annealed at 1400 & xfffd;C followed by a slow cooling rate (?10 & xfffd;C min(?1)). Furthermore, the transformation of ?(o)& xfffd;& xfffd;?(o), as well as the disorder-order transition of ?& xfffd;& xfffd;?(o), is unambiguously detected, within the certain transformation temperatures.
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页数：10
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