Microstructure and properties of CuCr contact materials with different Cr content
来源期刊：中国有色金属学报(英文版)2011年第z2期
论文作者：XIU Shi-xin YANG Ren XUE Jun WANG Jin-xing WANG Jia-yi
文章页码：389 - 393
Key words：CuCr contact material; microstructure; interrupting property
Abstract: In order to study effect of Cr content on microstructure and properties of CuCr contact material, three different Cr content contact materials, named CuCr25, CuCr30 and CuCr40, were manufactured by vacuum casting process. The microstructure, physical properties and breaking current properties were studied. The results show that both the consistency of the microstructure and the tensile strength increase, while the Cr particle size, the electrical conductivity and the density all decrease with increasing Cr content. The interrupting property of CuCr25 and CuCr30 is almost the same, whereas that of CuCr40 is the worst.
XIU Shi-xin1, YANG Ren2, XUE Jun3, WANG Jin-xing3, WANG Jia-yi1
(1. State Key Laboratory of Electrical Insulation and Power Equipment,
Xi’an Jiaotong University, Xi’an 710049, China;
2. Shaanxi Electric Power Research Institute, Xi’an 710054, China;
3. Shaanxi Electric Power Company, Xi’an 710004, China)
Abstract:In order to study effect of Cr content on microstructure and properties of CuCr contact material, three different Cr content contact materials, named CuCr25, CuCr30 and CuCr40, were manufactured by vacuum casting process. The microstructure, physical properties and breaking current properties were studied. The results show that both the consistency of the microstructure and the tensile strength increase, while the Cr particle size, the electrical conductivity and the density all decrease with increasing Cr content. The interrupting property of CuCr25 and CuCr30 is almost the same, whereas that of CuCr40 is the worst.
Key words:CuCr contact material; microstructure; interrupting property
