Properties of vacuum cast CuCr25 and CuCr25Te contact material

被引：12

作者：

Xiu Shi-xin ^{[1
]}

Yang Ren ^{[2
]}

Xue Jun ^{[3
]}

Wang Jin-xing ^{[3
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China

[2] Shaanxi Elect Power Res Inst, Xian 710054, Peoples R China

[3] Shaanxi Elect Power Co, Xian 710004, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2009年 / 19卷

关键词：

Te; CuCr contact material; vacuum cast;

D O I：

10.1016/S1003-6326(10)60086-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The CuCr25 and CuCr25Te contact materials were manufactured by vacuum casting process. The microstructures of two alloys were observed by metallographic microscope, the electrical conductivity, density and hardness were measured. The tensile test was done by universal testing machine while the fractography was observed by SEM, the breaking current tests were carried out in Weil Synthetic Circuit with arc-igniting branch in Xi'an Jiaotong University. The results show that-the microstructures and physical parameters change after adding Te element. The tensile strength decreases and the toughness turns bad, which is propitious to improve the anti-welding property. But the breaking current capacity of CuCr25Te alloy is inferior to CuCr25 alloy. Thus, adding Te element has both advantages and disadvantages on main properties of CuCr contact material.

引用

页码：S444 / S447

页数：4