东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (9): 1258-1261.DOI: -

• 论著 • 上一篇    下一篇

原位形变Cu-14.5%Fe复合材料的组织和性能研究(Ⅱ)——力学和导电性能

左小伟;王恩刚;屈磊;赫冀成;   

  1. 东北大学材料电磁过程研究教育部重点实验室;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-09-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2007AA03Z519);;

Microstructure and property of in situ deformed Cu-14.5%Fe composites(II) -Mechanical properties and electrical conductivity

Zuo, Xiao-Wei (1); Wang, En-Gang (1); Qu, Lei (1); He, Ji-Cheng (1)   

  1. (1) Key Laboratory of Electromagnetic Processing of Materials, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-09-15 Published:2013-06-20
  • Contact: Wang, E.-G.
  • About author:-
  • Supported by:
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摘要： 研究了不同形变量下原位形变Cu-14.5%Fe(体积分数)复合材料力学和导电性能.结果表明,Cu-14.5%Fe复合材料的弹性模量为134.41 GPa,与混合定律的计算值(138 GPa)相吻合;当形变量大于5后,Cu-Fe复合材料的强度已超出混合定律的预测强度,且超出的强度ΔσD与Fe纤维间距d间满足:ΔσD=-188+465×d-1/2的关系;Cu-14.5%Fe复合材料的电阻率主要受Fe元素成分的影响,在形变过程中导电率在49.54%～56.89%IACS的范围内波动.

关键词: 原位形变, Cu-Fe复合材料, 抗拉强度, 导电率, 综合性能

Abstract: The mechanical properties and electrical conductivity of the in situ deformed Cu-14.5%Fe composites were investigated. The results showed that the Young's modulus of the composites is 134.41 GPa, which is approximately in agreement with the predicted value 138 GPa by ROM (rule of mixture). The investigation on the strength of Cu-Fe composites indicated that the ROM is not suitable to the prediction of the strength of Cu-Fe composites when the drawing ratio is greater than 5. The relationship between the strength as the excess over the value predicted by ROM, ΔσD, and the interfiber spacing d should satisfy the formula ΔσD=-188+465×d-1/2. The resistivity of the composites is affected mainly by the Fe content, while the conductivity fluctuates between 49.54%IACS and 56.89 %IACS.

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