Effects of RE Elements on Microstructure and Electric Conductivity of Pure Copper

Meng Xiangfeng1; Zhang Weiqiang2

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Effects of RE Elements on Microstructure and Electric Conductivity of Pure Copper
Vol. 29, Issue 3, Pages: 286-288(2009)
Published： 2009 ，
DOI：

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[1]孟祥锋,张伟强.RE元素对纯Cu显微组织和导电性的影响[J].特种铸造及有色合金,2009,29(03):286-288+196.

Meng Xiangfeng1, Zhang Weiqiang2. Effects of RE Elements on Microstructure and Electric Conductivity of Pure Copper. [J]. Special Casting & Nonferrous Alloys 29(3):286-288(2009)
[1]孟祥锋,张伟强.RE元素对纯Cu显微组织和导电性的影响[J].特种铸造及有色合金,2009,29(03):286-288+196. DOI：

Meng Xiangfeng1, Zhang Weiqiang2. Effects of RE Elements on Microstructure and Electric Conductivity of Pure Copper. [J]. Special Casting & Nonferrous Alloys 29(3):286-288(2009) DOI：

摘要

研究了La、Ce、Nd和Y对纯Cu的电导率、硬度和显微组织的影响。结果表明

在纯Cu中加入适量的La、Ce、Nd和Y能起到净化、去除杂质的作用

从而改善纯Cu的导电性。4种元素La、Ce、Nd和Y的最佳添加量分别为0.05%、0.06%和0.02%

其中Y的效果最好。RE也可以使晶粒细化（但Nd例外）

其中Y的细化作用最明显

从而有效改善纯Cu的力学性能。

Abstract

Effects of rare earth element including La

Nd and Y on the electric conductivity

hardness and microstructure of pure copper were investigated.The results show that appropriate RE elements

such as La

Nd and Y can improve electric conductivity of pure copper as a result of purification and impurity removal.The desirable La

Nd and Y additions are 0.05%

0.06%

0.06% and 0.02%

respectively

in which Y element exhibits the optimum effects on improvement of electric conductivity of pure copper.Mechanical properties of pure copper can be improved with RE element addition as a result of refining grain size

especially Y element addition.