Anti-welding property and fracture mechanism of CuCr contact materials

Author

Yang, Zhimao ; Wei, Shiping ; Qiu, Chengfeng ; Zhang, Jingchao ; Ding, Bingjun ; Wang, Xiaotian

Author_Institution

Dept. of Mater. Sci. & Eng., Xi´´an Jiaotong Univ., Shaanxi, China

fYear

1992

fDate

18-21 Oct. 1992

Firstpage

91

Lastpage

94

Abstract

The welding strengths of different CuCr contact materials are measured and the fracture morphologies are observed by scanning electron microscope. Experimental results show that carbon added to CuCr alloys can improve the anti-welding property. Carbide films on the surface of Cr particles reduce the fracture stress of CuCr alloys and influence the microstructure of the weld zone.<>

Keywords

chromium alloys; copper alloys; electrical contacts; fracture; fracture toughness testing; scanning electron microscope examination of materials; welding; CuCr contact materials; CuCrC; anti-welding property; carbide films; fracture mechanism; fracture morphologies; fracture stress; microstructure; scanning electron microscope; welding strengths; welding test; Chromium; Conductivity; Copper alloys; Dielectric measurements; Furnaces; Mechanical factors; Powders; Testing; Voltage; Welding;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Contacts, 1992., Proceedings of the Thirty-Eighth IEEE Holm Conference on

Conference_Location

Philadelphia, PA, USA

Print_ISBN

0-7803-0576-0

Type

conf

DOI

10.1109/HOLM.1992.246929

Filename

246929