稀土元素La和Ce对纯铜性能的影响

以中间合金的方式在纯铜中加入不同量稀土元素La和Ce,机械加工成统一尺寸试样后,测试其导电性、强度和硬度.结果表明,稀土添加剂能起到净化基体和细化晶粒作用,改善纯铜的导电性,提高纯铜的强度、硬度.考虑试样的综合性能,得出La和Ce的最佳加入量均为0.02%.通过研究稀土元素对纯铜性能的影响,旨在对高强高导铜合金的进一步研究打下基础.

Effect of Rare-earth Element La and Ce on Pure Copper

By means of inter-alloy, added different amount of rare-earth elements La and Ce to pure copper. It is tested that conductance, intensity and hardness after machining the sample with uniform size. The results show that rare earth addition can purge the basal body, refine grain, and improve electrical conductivity, intensity and hardness of pure copper. In general, the best content of La and Ce is 0.02%. In order to further study the high-tensile high-conductivity copper alloy, we researched that effect of rare earth element on property of pure copper.