Abstract
CuCr contact material has been widely used for vacuum interrupters in medium-voltage applications. The microstructure of CuCr contact material is the important factor to determine the properties of vacuum interrupter. In this work CuCr alloys fabricated by normal powder metallurgy are processed by the cryogenic treatment. The microstructure and properties of the contact materials after cryogenic treatment are investigated. Test results show that cryogenic treatment result in fine microstructure of the contact material, especially in Cr composition in CuCr alloy. During the cryogenic process, the low temperature caused the particles in the microstructure to rearrange, which made copper and chromium compositions better distributed. Fine microstructure and uniform distribution of alloys are beneficial to improving the properties of contact materials. The resistance to the arc erosion has been improved greatly by the cryogenic treatment.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
