Effect of Zr and Sc on mechanical properties and electrical conductivities of Al wires  

合金成分对铝导线力学性能与导电性能的影响(英文)

作　　者：钞润泽[1] 管西花 管仁国[1] 铁镝[1] 连超[1] 王祥[1] 张俭[1] 

机构地区：[1]东北大学 材料与冶金学院,沈阳110819 [2]沈阳建筑大学 交通与机械工程学院,沈阳110168

出　　处：《Transactions of Nonferrous Metals Society of China》2014年第10期3164-3169,共6页中国有色金属学报（英文版）

基　　金：Project(51222405)supported by the National Natural Science Foundation for Outstanding Young Scholars of China;Project(51034002)supported by the National Natural Science Foundation of China;Project(120502001)supported by the Fundamental Research Funds for the Central Universities of China

摘　　要：In order to obtain the Al wires with good mechanical properties and high electrical conductivities, conductive wires of Al-0.16 Zr, Al-0.16 Sc, Al-0.12Sc-0.04Zr（mass fraction, %） and pure Al（99.996%） were produced with the diameter of 9.5 mm by continuous rheo-extrusion technology, and the extruded materials were heat treated and analyzed. The results show that the separate additions of 0.16% Sc and 0.16% Zr to pure Al improve the ultimate tensile strength but reduce the electrical conductivity, and the similar trend is found in the Al-0.12Sc-0.04 Zr alloy. After the subsequent heat treatment, the wire with the optimum comprehensive properties is Al-0.12Sc-0.04 Zr alloy, of which the ultimate tensile strength and electrical conductivity reach 160 MPa and 64.03%（IACS）, respectively.为了获得既有良好力学性能又有较高导电性能的铝导线,采用连续流变挤压技术制备出直径为9.5 mm的Al-0.16Zr、Al-0.16Sc、Al-0.12Sc-0.04Zr(质量分数,%)和高纯铝(99.996%)4种铝导线,随后对3种铝合金导线进行热处理,并进行分析测试。结果表明:向高纯铝中单独添加0.16%Sc和0.16%Zr可以提高铝导线的抗拉强度,降低铝导线的导电性能。在高纯铝中添加0.12%Sc和0.04%Zr的合金也具有相同的规律。经过热处理,Al-0.12Sc-0.04Zr铝合金导线可以达到抗拉强度和导电率的最优综合性能:抗拉强度为160 MPa,导电率为64.03%(IACS)。

关 键 词：alloy composition Al wires mechanical properties electrical conductivity continuous rheo-extrusion 

分 类 号：TG146.21[一般工业技术—材料科学与工程]