Influence of Cerium and Yttrium on Cu-Cr-Zr Alloys
来源期刊：Journal of Rare Earths2006年第S1期
论文作者：李华清 谢水生 米绪军 刘勇 吴朋越 程磊
文章页码：367 - 371
摘 要：<正>Testing results shows that alloying with Ce and Y improves the hardness and softens temperature of cold worked Cu-Cr-Zr alloys obviously, while the conductivity was fluctuant with the variation of RE content. Observation and analysis indicate that micro-dosage RE elements helps to refine microstructure and morphology of Cu-Cr-Zr-RE alloys, suppress microstructure coarsening and improves homogeneous level of Cu-Cr-Zr alloys. Alloying with 0.01% Ce causes about 1% IACS increment of conductivity, and reduces about 2% 3.5% IACS conductivity after alloying with 0.03% 0.04% RE （Ce or Ce + Y） for Cu-Cr-Zr alloys. The microstructure of as-cast Cu-Cr-Zr alloy is refined after alloying with 0.01% Ce while the plasticity is improved slightly. Alloying with 0.01% 0.04% RE improves the softening temperature of deformed Cu-Cr-Zr alloys about 20 40 K; hardness is also improved about 20 35 HV . Test data indicate that alloying with Ce + Y raises softening temperature and hardness of Cu-Cr-Zr alloys more notably than alloying with pure Ce.
李华清，谢水生，米绪军，刘勇，吴朋越，程磊
摘 要：<正>Testing results shows that alloying with Ce and Y improves the hardness and softens temperature of cold worked Cu-Cr-Zr alloys obviously, while the conductivity was fluctuant with the variation of RE content. Observation and analysis indicate that micro-dosage RE elements helps to refine microstructure and morphology of Cu-Cr-Zr-RE alloys, suppress microstructure coarsening and improves homogeneous level of Cu-Cr-Zr alloys. Alloying with 0.01% Ce causes about 1% IACS increment of conductivity, and reduces about 2% 3.5% IACS conductivity after alloying with 0.03% 0.04% RE （Ce or Ce + Y） for Cu-Cr-Zr alloys. The microstructure of as-cast Cu-Cr-Zr alloy is refined after alloying with 0.01% Ce while the plasticity is improved slightly. Alloying with 0.01% 0.04% RE improves the softening temperature of deformed Cu-Cr-Zr alloys about 20 40 K; hardness is also improved about 20 35 HV . Test data indicate that alloying with Ce + Y raises softening temperature and hardness of Cu-Cr-Zr alloys more notably than alloying with pure Ce.
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