摘要
采用瓷刚铝合金TiB_(2)/Al制备导电铝材,在大幅提升铝材弹性模量的基础上获得了优异的强塑性和电导率组合。瓷刚铝合金通过氟盐反应法向铝熔体中原位生成TiB_(2)颗粒以增强铝基体。相比于纯合金而言,瓷刚铝合金晶粒尺寸大幅降低。1070铝合金中添加2%的TiB_(2)颗粒,抗拉强度达到161.7 MPa,屈服强度为150.6 MPa,伸长率为7.76%,电导率为35.786 MS/m,弹性模量为73.1 GPa。6201铝合金中添加0.5%的TiB_(2)颗粒后抗拉强度提高了55 MPa,电导率提升了1.6066 MS/m,伸长率未明显降低。
The ceramic-rigid TiB_(2)/Al was applied to fabricate aluminum conductor to obtain superior combination of strength,ductility and electrical conductivity on the basis of greatly improving the elastic modulus.TiB_(2)particles were in-situ generated in the molten aluminum through halide salt reactions to reinforce aluminum matrix.Compared with pure alloys,the grain size of ceramic-rigid TiB_(2)/Al is significantly refined.With 2%TiB_(2)addition,the tensile strength,yield strength,elongation,conductivity and elastic modulus of 1070 aluminum alloy reach 161.7 MPa,150.6 MPa,7.76%,35.786 MS/m,and 73.1 GPa,respectively.After 0.5%TiB_(2)addition,the tensile strength and conductivity of 6201 aluminum alloy are increased by 55 MPa and 1.6066 MS/m,while the elongation is hardly reduced.
作者
赵凯
陈宗宁
郝志刚
康慧君
郭恩宇
王同敏
ZHAO Kai;CHEN Zongning;HAO Zhigang;KANG Huijun;GUO Enyu;WANG Tongmin(Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province),School of Materials Science and Engineering,Dalian University of Technology,Dalian 116024;Ningbo Institute of Dalian University of Technology,Ningbo 315042)
出处
《特种铸造及有色合金》
CAS
北大核心
2024年第11期1518-1522,共5页
Special Casting & Nonferrous Alloys
基金
国家重点研发计划资助项目(2021YFA1600702)
国家自然科学基金资助项目(52174356,52022017,51927801,51971051,51901034)
辽宁省科技计划资助项目(2022010005-JH6/1001,2022JH2/1013)
大连市科技创新基金资助项目(2020JJ25CY002,2020J12GX037)。
关键词
TiB_(2)颗粒
瓷刚铝合金
电导率
力学性能
TiB_(2)Particles
Ceramic-rigid TiB_(2)/Al
Electrical Conductivity
Mechanical Properties
