【摘要】 本文综述了稀土元素对铜及铜合金的净化、去杂、细化晶粒作用，以及对其物理、化学和机械加工性能等方面的影响。更多还原

【Abstract】 This paper reviewed the function of rare earth on the clean-up,purifica-tion and refinement for copper and its alloys,and the effects of rare earth on the physical,chemical and mechanical working properties of copper and its alloys.更多还原