Improved mechanical properties in titanium matrix composites reinforced with quasi-continuously networked graphene nanosheets and in-situ formed carbides

作     者：Q.Yan B.Chen L.Cao K.Y.Liu S.Li L.Jia K.Kondoh J.S.Li Q.Yan;B.Chen;L.Cao;K.Y.Liu;S.Li;L.Jia;K.Kondoh;J.S.Li

作者机构：State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical UniversityXi’an 710072China School of Materials Science and EngineeringXi’an University of TechnologyXi’an 710048China Joining and Welding Research InstitutionOsaka University11-1 MihogaokaIbarakiOsaka 567-0047Japan 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2022年第96卷第1期

页      面：85-93页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：financially supported by the Key Research and Development Plan of Shaanxi Province(No.2020KW-034) the Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University(CX2021058) 

主　　题：Titanium matrix composites(TMCs) Graphene Network structure Strength Ductility 

摘      要：In order to construct quasi-continuously networked reinforcement in titanium(Ti)matrix composites,in this study,Ti-6 Al-4 V spherical powders were uniformly coated with a graphene nanosheet(GNS)layer by high energy ball milling and then consolidated by spark plasma *** showed that the GNS layer on the powder surface inhibited continuous metallurgy bonding between powders during sintering,which led to the formation of quasi-networked hybrid reinforcement structure consisting of insitu Ti C and remained *** networked GNSs/Ti64 composite possessed noticeably higher tensile strength but similar ductility to the Ti64 alloy,leading to both better tensile strength and ductility than the GNSs/Ti composite with randomly dispersed GNSs and Ti *** formation mechanism and the fracture mechanism of the networked hybrid reinforcement were *** results provided a method to fabricate Ti matrix composites with high strength and good ductility.