聚片孪生TiAl单晶及其应用展望  

PST TiAl Single Crystal and Its Application Prospect

作　　者：陈光 陈奉锐[1,2] 祁志祥 冯辰铭 曹月德[1,2] 许昊 郑功 CHEN Guang;CHEN Fengrui;QI Zhixiang;FENG Chenming;CAO Yuede;XU Hao;ZHENG Gong(MIIT Key Laboratory of Advanced Metallic and Intermetallic Materials Technology, Nanjing University of Science and Technology Nanjing, 210094, China;Engineering Research Center of Materials Behavior and Design, Ministry of Education, Nanjing University of Science and Technology Nanjing,210094, China)

机构地区：[1]南京理工大学先进金属与金属间化合物材料技术工业和信息化部重点实验室,南京210094 [2]南京理工大学材料评价与设计教育部工程研究中心,南京210094

出　　处：《振动．测试与诊断》2019年第5期915-926,1126,共13页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目（51731006,51771093,91860104）

摘　　要：简要回顾了TiAl金属间化合物的研究历程,在TiAl单晶研究的基础上,重点介绍了新型高温高性能聚片孪生(polysynthetically twinned,简称PST)TiAl单晶理论、技术与性能等方面的突破性进展,并分析了尚待开展的主要研究工作,展望了其在航空发动机叶片上的应用前景。This paper briefly reviews the research history of TiAl intermetallic compounds.Based on reviewing the research of TiAl single crystals,we focus on the breakthrough in theory,preparation technology and mechanical properties of the new generation of high-performance high-temperature polysynthetically twinned(PST)TiAl single crystals.We further analyze main research of PST TiAl that needs to be carried out in the future.Finally,we prospect the application of this novel PST TiAl single crystals in aeroengine blades.

关 键 词：TIAL金属间化合物 聚片孪生TiAl单晶 力学性能 航空发动机叶片 

分 类 号：TG146.2[一般工业技术—材料科学与工程]