Study on microstructure and properties of aged Cu-Ti-Zr-RE alloy
Electrical conductivity, tensile strength and micro-hardness of Cu-3.5wt.％Ti-0.1wt.％Zr-RE alloy were investigated after optimizing technics of plastic deformation and the heat treatment. The results show that good combination of the physical and mechanical properties, such as tensile strength 1160 MPa, micro-hardness 335 Hv and electrical conductivity 15 IACS％ can be obtained on peak aging at 420℃ for 7 h. Maximum strength was associated with the precipitation of metastable, ordered and coherent β (Cu4Ti) phase on peak aging. Then the strength decreased due to the precipitation of β (Cu3Ti) phase in alloys overaged.
Cu-Ti alloy Age-hardening Ultra-high strength Precipitation
Cao Xingmin Zhu Yubin Guo Fuan Xiang Chaojian
Shanghai University, Shanghai 2323444, China Suzhou Institute of Non-ferrous Metal Processing Resear Shanghai University, Shanghai 2323444, China Suzhou Institute of Non-ferrous Metal Processing Research, Suzhou 215026, China
国际会议
青岛
英文
1687-1690
2009-10-09（万方平台首次上网日期，不代表论文的发表时间）