放电等离子烧结制备Ti_(2)AlNb及其室温力学性能的研究  

Study on Preparation of Ti_(2)AlNb by Spark Plasma Sintering and Its Room Temperature Mechanical Properties

作　　者：窦博 刘松涛 姜凤阳 思芳 吴天栋 王俊勃 刘江南 董玺 DOU Bo;LIU Song-tao;JIANG Feng-yang;SI Fang;WU Tian-dong;WANG Jun-bo;LIU Jiang-nan;DONG Xi(School of Materials Engineering,Xi an Polytechnic University,Xi an 710048,China;Xi'an Chaojing Technology Co.,Ltd.,Xi'an 710048,China)

机构地区：[1]西安工程大学材料工程学院,陕西西安710048 [2]西安超晶科技有限公司,陕西西安710018

出　　处：《稀有金属与硬质合金》2023年第5期73-77,共5页Rare Metals and Cemented Carbides

基　　金：陕西省重点研发计划项目(2018GY-110);西安市重大科技成果转化及产业化项目(20GXSF0010)。

摘　　要：以Ti、Al、Nb单质粉末为原料,采用放电等离子烧结技术(SPS)制备了Ti_(2)AlNb合金。利用扫描电子显微镜(SEM)和X射线衍射仪(XRD)对合金显微组织及物相结构进行表征,并测试了Ti_(2)AlNb合金室温力学性能。结果表明,放电等离子烧结法制得的Ti_(2)AlNb合金晶粒分布均匀,室温力学性能优异,抗拉强度达到254 MPa。相比传统烧结方式,放电等离子烧结法具有升温速度快和烧结样品致密性高等优点。Ti_(2)AlNb alloy was prepared using elemental powders of Ti,Al and Nb through spark plasma sintering(SPS).The microstructure and phase composition of the alloy were characterized using scanning electron microscope(SEM)and X-ray diffractometer(XRD),and the room temperature mechanical properties of the Ti_(2)AlNb alloy were also tested.The results show that the Ti_(2)AlNb alloy prepared by spark plasma sintering has uniform grain distribution and superior room temperature mechanical properties,with a tensile strength of 254 MPa.Compared with traditional sintering methods,spark plasma sintering offers advantages such as rapid heating and high densification of sintered samples.

关 键 词：Ti_(2)AlNb 放电等离子烧结 室温力学性能 抗拉强度 

分 类 号：TG146.23[一般工业技术—材料科学与工程]