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重稀土金属在钢铁中的应用已在上一期介绍。本文继续讨论重稀土在有色全属材料及其它有关方面的应用。 一、重金属 1、铜及其合金 文献报导,铜中添加0.1～0.6％的铈和钇后,能使固溶体晶粒细化,使再结晶温度提高100℃含0.69％锆的导电铜材料中添加0.53％的钇后,其导电率达86％IACS,400℃时的持久强度为13公斤/毫米~2。
The application of heavy rare earth metals in steel has been introduced in the previous issue. This article continues to discuss the application of heavy rare earth in non-ferrous metals and other related aspects. First, heavy metals 1, copper and its alloys Reported in the literature, copper added 0.1 ~ 0.6% of cerium and yttrium, solid solution can make the grain refinement, the recrystallization temperature increased by 100 ℃ 0.69% zirconium containing conductive copper material added After 0.53% yttrium, its electrical conductivity reached 86% IACS, and the persistence strength at 400 ° C was 13 kg / mm 2.