Phase equilibria in Co-Ti-Re ternary system  

作　　者：Ling-Ling Li Cui-Ping Wang Shui-Yuan Yang Jia-Jia Han Yong Lu Jin-Bin Zhang Xing-Jun Liu 

机构地区：[1]College of Materials and Fujian Provincial Key Laboratory of Materials Genome,Xiamen University,Xiamen 361005,China [2]College of Materials Science and Engineering,Guangdong Ocean University,Yangjiang 529500,China [3]Xiamen Key Laboratory of High-Performance Metals and Materials,Xiamen University,Xiamen 361005,China [4]School of Materials Science and Engineering,Institute of Materials Genome and Big Data,Harbin Institute of Technology,Shenzhen 518055,China

出　　处：《Rare Metals》2023年第8期2736-2746,共11页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.51831007);the Key-area Research and Development Program of Guangdong Province(No.2019B010943001)。

摘　　要：The phase equilibria in the Co-Ti-Re ternary system at 800,1000,1100 and 12000C were studied combined with electron probe microanalyzer(EPMA),X-ray diffraction(XRD),scanning electron microscope(SEM)and transmission electron microscope(TEM).The new phaseτwith a large solubility was discovered at all four isothermal sections,and its structure still needs a further study.A large solubility of Re in the CoTi phase was observed.The solubility of Re in the Co_(3)Ti phase is6.1%at 800℃,8.7%at 1000℃and 7.7%at 1100℃.The present work could be significant for alloy design of Co-based alloys and thermodynamic analysis of the Co-TiRe ternary system.

关 键 词：Isothermal section Phase equilibria Co-Ti-Re Co-based supperalloys 

分 类 号：TG132.3[一般工业技术—材料科学与工程]