基于Ti-6Al-4V合金团簇式设计合金的组织性能研究  

Study on the Microstructure and Properties of Designed Alloy Based on Ti-6Al-4V Alloy Cluster Formula

作　　者：陈红 刘田雨 赵军 刘时兵 庞致远 张倩 史昆 姚谦 岳野 严建强 CHEN Hong;LIU Tian-yu;ZHAO Jun;LIU Shi-bing;PANG Zhi-yuan;ZHAND Qian;SHI Kun;YAO Qian;YUE Ye;YAN Jian-qiang(Shenyang Research Institute of Foundry Co.,Ltd.,CAM,Nation Key Laboratory of Advance Casting Technologies,Shenyang 110022,Liaoning,China;Military Representative Office of Air Force Equipment in Liaoyang,Shenyang 110016,Liaoning,China;The first Military Representative Office of the Air Force Armaments Department in Shenyang,Shenyang 110016,Liaoning,China)

机构地区：[1]中国机械总院集团沈阳铸造研究所有限公司,高端装备铸造技术全国重点实验室,辽宁沈阳110022 [2]空装驻辽阳地区军事代表室,辽宁沈阳110016 [3]空军装备部驻沈阳地区第一军事代表室,辽宁沈阳110016

出　　处：《铸造》2023年第8期1010-1010,1011-1014,共5页Foundry

基　　金：沈阳市自然科学基金(22-315-6-05);“揭榜挂帅”产业共性技术项目(22-101-0-24);陕西省教育厅一般专项科研计划项目(22JK0640)。

摘　　要：基于Ti-6Al-4V合金的团簇式12[Al-Ti_(12)](AlTi_(2))+5[Al-Ti_(14)](V_(2)Ti),通过替换β-[Al-Ti_(14)](V_(2)Ti)团簇式中连接原子的种类和比例,设计了Ti-6.07Al、Ti-6.06Al-1.97V、Ti-6.05Al-5.90V和Ti-7.16Al-1.99V 4种合金。结果表明,Ti-6.07Al、Ti-6.06Al-1.97V和Ti-7.16Al-1.99V合金为α单相组织,而Ti-6.05Al-5.90V合金为α+β两相组织。相比于Ti-6Al-4V合金,Ti-6.05Al-5.90V合金抗拉强度增加了165 MPa,达1053 MPa,延伸率仅降低了2%,为4.5%;Ti-7.16Al-1.99V合金抗拉强度降低了115 MPa,为773 MPa,延伸率提高了162%,达17%。因此,Ti-6.05Al-5.90V可作为高强钛合金候选材料,Ti-7.16Al-1.99V合金可作为高韧钛合金候选材料。In this paper,based on the Ti-6Al-4V alloy cluster formula 12[Al-Ti_(12)](AlTi_(2))+5[Al-Ti_(14)](V2Ti),four alloys were designed by replacing the types and proportions of glue atoms inβ-[Al-Ti_(14)](V2Ti)cluster formula,which were Ti-6.07Al,Ti-6.06Al-1.97V,Ti-6.05Al-5.90Vand Ti-7.16Al-1.99V.The results showed that Ti-6.07Al,Ti-6.06Al-1.97V and Ti-6.05Al-5.90V containedαsingle-phase microstructure,and Ti-6.05Al-5.90V consists ofα+βtwo-phase microstructure.Compared with Ti-6Al-4V,the tensile strength of Ti-6.05Al-5.90V increased by 165 MPa,reaching 1053 MPa,and the elongation decreased by 2%,reaching 4.5%.The tensile strength of Ti-7.16Al-1.99V decreased by 115 MPa to 773 MPa,and elongation increased by 162%to 17%.Therefore,Ti-6.05Al-5.90V could be used as candidates for high strength Ti alloy,and Ti-7.16Al-1.99V had the potential to be a candidate material for high toughness Ti alloy.

关 键 词：TI-6AL-4V 团簇加连接原子模型 成分设计 组织 性能 

分 类 号：TG146.2[一般工业技术—材料科学与工程] TG113[金属学及工艺—金属材料]