The distribution of RE on pure copper with different additives, existing state of RE on pure copper and effect of RE on pure copper casting structure are studied.

• 研究了不同稀土加入量在纯铜中的分布情况,分析了稀土元素在纯铜中的存在状态,观察了稀土元素对纯铜铸态组织的影响。