Mechanical Properties,Electrical Conductivity and Microstructure of CuCrZr Alloys Treated with the Thermal Stretch Process
CuCrZr alloys are promising metal lic materials for a wide range of applications.In this study, CuCrZr alloys were treated with the thermal stretch process at various temperatures from 100℃ to 300℃.The microstructure and properties of the treated alloys were investigated by optical microsco py, X-ray diffraction, scanning dectron microsco py, transmission electron microscopy (TEM), and micro-hardness and electrical conductivity meas urements.The results revealed that the thermal stretch process has been successfully developed to manufacture the precipitation-hardened CuCrZr alloys with a good combination of micro-hardness and conductivity.Cr-rich precipitations with an Nishiyama-Wasserman relationship with the matrix were observed in TEM.The achievement of high mi cro-hardness and acceptable electrical conductivity in the thermal-stretch treated alloys is ascribed to the interactions of the heteroatom solution, grain re finement and dispersive precipitation effect.
CuCrZr alloys thermal stretch treatment micro-hardness electrical conductivity microstructure
B.Zhang Z.G.Zhang W.Li
Department of Materials Science and Engineering,Jinan University,Guangzhou 510632
国际会议
The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)
昆明
英文
490-496
2013-11-19（万方平台首次上网日期，不代表论文的发表时间）