大塑性变形在铝导体材料的研究进展

Research Progress of Large Plastic Deformation in Aluminum Conductor Materials

为了满足导线低损耗、高安全的性能要求,实现输电线路的节能减排目标,迫切需要打破导体材料强度和导电率之间的制约关系。有研究表明,通过大塑性变形技术可获得铝导体材料的超细晶微观组织,显著改善材料性能,平衡强度与导电率之间的关系,实现铝导体材料的强度和导电性能的协同提高。本文探讨了导体材料强度和导电率之间的制约关系和大塑性变形对铝导体材料性能的影响,梳理了大塑性变形技术的发展和大塑性变形对铝导体材料性能影响的研究进展,为铝导体材料的研究提供了新的思路。

In order to meet the performance requirements of low loss and high safety of conductors and achieve the goal of energy saving and emissionreduction of transmission lines,it is urgent to break the restrictive relationship between conductor material strength and conductivity.Research shows that,the ultra-fine crystal microstructure of aluminum conductor material can be obtained by large plastic deformation technology,which can significantly improve the material properties,balance the relationship between strength and conductivity,and realize the synergistic improvement of strength and conductivity of aluminum conductor material.In this paper,the restrictive relationship between the strength and conductivity of conductor materials and the influence of large plastic deformation on the performance of aluminum conductor materials are discussed,the development of large plastic deformation technology and the research progress of large plastic deformation on aluminum conductor materials are sorted out,which provides a new idea for the research of aluminum conductor materials.