Isothermal Sections of the Ni-Cr-Ta Ternary System at 1200 °C and 1300 °C

被引：1
|
作者：
Wang, Cuiping [1 ,2 ]
Liang, Yuhui [1 ,2 ]
Yang, Shuiyuan [1 ,2 ]
Yang, Mujin [1 ,2 ]
Li, Lingling [1 ,2 ]
Han, Jiajia [1 ,2 ]
Lu, Yong [1 ,2 ]
Liu, Xingjun [1 ,2 ,3 ,4 ]
机构：
[1] Xiamen Univ, Coll Mat, Xiamen 361005, Fujian, Peoples R China
[2] Xiamen Univ, Fujian Prov Key Lab Mat Genome, Xiamen 361005, Fujian, Peoples R China
[3] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Heilongjiang, Peoples R China
[4] Harbin Inst Technol, Inst Mat Genome & Big Data, Shenzhen 518055, Peoples R China
来源：
METALS | 2019年 / 9卷 / 07期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
Ni-Cr-Ta system; isothermal section; electron probe microanalysis; CRYSTAL-STRUCTURE; PHASE-EQUILIBRIA; BASE SUPERALLOY; SINGLE-CRYSTAL; CHROMIUM; 1ST-PRINCIPLES; MICROSTRUCTURE; OPTIMIZATION; STABILITY; OXIDATION;
D O I：
10.3390/met9070770
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two isothermal sections of the Ni-Cr-Ta ternary system at 1200 ffi C and 1300 ffi C have been determined by using electron probe microanalysis, energy dispersive spectroscopy and di ff erential scanning calorimeter. A Laves phase (Ni, Cr) 2Ta(HT)(C14 structure) with large solid solubility stabilized by the Ni addition was determined in both two isothermal sections. The composition range of this phase was about 25.8-66.0 at.% Cr, 2.5-44.3 at.% Ni, and 24.0-40.0 at.% Ta at 1200 ffi C, which increased with raising temperature. The melting point of the Ni-Cr alloys decreased with the addition of Ta. No ternary compound was found in both these two isothermal sections. The present work could be significant for practical application of nickel-based alloys and future thermodynamics assessment of the Ni-Cr-Ta ternary system.
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页数：13
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