Preparation of CuCr25 contact materials by vacuum induction melting

CuCr25 contact materials prepared by vacuum induction melting were investigated. The experimental results show that this technique can lead to low cost and high efficiency in industrial production. Ni and W additions can improve the microstructure of the alloys. At the same time, the properties of CuCr25 can reach the standard of conventional CuCr50 alloys. The influence of Ni and W additions on the microstructure and properties of CuCr25 alloys was discussed.