Mechanical properties and microstructure of in situ formed Ti_(2)AlN/TiAl(WMS)composites

作     者：Wan-Liang Liang Rui Hu Yi-Wen Liu Tie-Bang Zhang Jin-Shan Li Wan-Liang Liang;Rui Hu;Yi-Wen Liu;Tie-Bang Zhang;Jin-Shan Li

作者机构：State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical UniversityXi'an 710072China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2021年第40卷第1期

页      面：190-194页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：financially supported by the National Basic Research Program of China(No.2011CB605503) the Program of Introducing Talents of Discipline to Universities(No.B08040) 

主　　题：Ti_(2)AlN/TiAl(WMS)composites Reactive arc-melting Microstructure Compressive properties 

摘      要：The Ti_(2)AlN-reinforced TiAl(WMS)composites with different contents of Ti_(2)AlN were prepared by an in situ method of reactive arc-melting *** to the results of X-ray diffraction(XRD)analysis,the Ti_(2)AlNreinforced WMS composites consist ofγ-TiAl,α_(2)-Ti_(3)Al,and Ti_(2)AlN *** analysis results indicate that Ti_(2)AlN reinforcements with rod-like in shape form in the WMS matrix with aα_(2)/γlamellar structure containing some bulk y *** volume fraction of Ti_(2)AlN increasing,the grain size of the composites decreases significantly and the elasticity modulus(E)*** compressive strength and compressive fracture strain of the composite with 3 vol%Ti_(2)AlN have a maximum value of 1,654 MPa and 22.5%,respectively,which are approximately improved by 45.84%and 29.31%,respectively,compared with that of the unreinforced WMS alloy.