Simultaneous enhancement of strength and ductility in high Nb-TiAl by Si alloying  

作　　者：Jun Cao Tielong Sun Zhichao Guo Hui Xue Yongfeng Liang Junpin Lin 

机构地区：[1]State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,Beijing 100083,China

出　　处：《Journal of Materials Science & Technology》2024年第10期128-132,共5页材料科学技术（英文版）

基　　金：National Key R&D Program of China(2021YFB3700501);National Science and Technology Major Project[J2019-VI-0003–0116];National Natural Science Foundation of China(51831001);Funds for Creative Research Groups of China(51921001)。

摘　　要：1.Introduction TiAl alloys are lightweight and high-temperature-resistant structural materials having applicability in automotive and aerospace applications owing to their low density and excellent high-temperature properties[1-3].High-Nb-containing TiAl(High Nb-TiAl)alloys are considered as a new generation of TiAl alloys for applications at higher service temperatures[4-6].Components of TiAl alloys that have achieved long-term stability in the industry are mainly manufactured by casting,which is the most economical method[7-9].However,the mechanical properties of these com-ponents are limited at room temperature(RT),significantly hinder-ing their broad applications[7,10-12].

关 键 词：ALLOYS ALLOYING DUCTILITY 

分 类 号：TM273[一般工业技术—材料科学与工程]