摘要
To promote the solution of chromium in copper and the purity of copper-chromium(Cu-Cr) alloy,vacuum continuous casting(VCC) process was employed to fabricate the Cu-Cr alloy required for electrode material. Cu-0.6Cr(containing 0.6%(mass fraction) chromium) alloy bar with a diameter of 12 mm was cast with a constant rate of 250 mm/min. The microstructure,mechanical properties,and physical properties were discussed. After solid solution strengthening and aging treatments,Cu-0.6Cr alloy fabricated by VCC process has higher tensile strength(σ≥314 MPa),elongation rate(δ≥34%),conductivity(≥80.5% IACS),and hardness(80 HRB) compared to the as-cast alloy.
To promote the solution of chromium in copper and the purity of copper-chromium （Cu-Cr） alloy, vacuum continuous casting （VCC） process was employed to fabricate the Cu-Cr alloy required for electrode material. Cu-0.6Cr （containing 0.6%（mass fraction） chromium） alloy bar with a diameter of 12 mm was cast with a constant rate of 250 mm/min. The microstructure, mechanical properties, and physical properties were discussed. After solid solution strengthening and aging treatments, Cu-0.6Cr alloy fabricated by VCC process has higher tensile strength （σ≥314 MPa）, elongation rate （δ≥34%）, conductivity （≥80.5% IACS）, and hardness （80 HRB） compared to the as-cast alloy.
出处
《中国有色金属学会会刊：英文版》
CSCD
2007年第A02期1085-1088,共4页
Transactions of Nonferrous Metals Society of China
关键词
铜铬合金
真空连铸
固溶体处理
老化处理
微观结构
Cu-Cr alloy
vacuum continuous casting
solid solution treatment
aging treatment
conductivity
