Achieving High Strength and High Electrical Conductivity in a CuCrZr Alloy Using Equal-Channel Angular Pressing

作者:Tong, Yun-Xiang*; Wang, Yu; Qian, Zhi-Min; Zhang, Dian-Tao; Li, Li; Zheng, Yu-Feng
来源:Acta Metallurgica Sinica (English Letters), 2018, 31(10): 1084-1088.
DOI:10.1007/s40195-018-0766-9

摘要

In the present work, a CuCrZr alloy characterized by ultrafine grains and nanoscale particles was prepared by equal-channel angular pressing (ECAP) at 450 degrees C. A desired combination of a tensile strength (580 MPa) and an electrical conductivity (81% International Annealed Copper Standard) is simultaneously obtained in the as-ECAP-processed CuCrZr alloy without additional aging treatment. The improved properties can be mainly attributed to the ultrafine grains and nanoscale precipitates. This processing may pave a way to develop the CuCrZr alloys having high strength and high electrical conductivity for engineering applications.