Influence of operation number on arc erosion behavior of Ag/Ni electrical contact materials

作     者：Run-zhang HUANG Guo-fu XU Qiong WU Meng YUAN Chun-ping WU 黄润章;徐国富;吴琼;元梦;吴春萍

作者机构：School of Materials Science and EngineeringCentral South UniversityChangsha 410083China Key Laboratory of Nonferrous Materials Science and Engineering of Ministry of EducationCentral South UniversityChangsha 410083China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2022年第32卷第8期

页      面：2681-2695页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (No.51601225) Hunan Provincial Natural Science Foundation,China (No.2020JJ5742) 

主　　题：Ag/Ni electrical contact material operation number arc erosion arc parameter 

摘      要：Arc erosion behavior of Ag/Ni materials with different operation numbers was investigated by OM,3DOP and *** results indicated that the arc erosion of Ag/10Ni electrical contact material fabricated by sintering−extrusion technology was more and more serious with the operation numbers increasing from 1000 to *** the same operation numbers,the arc erosion on anode was more serious than that on ***,the pores preferred to emerge around the arc effect spot during the first 10000 *** the morphology of the molten silver on cathode and anode was different due to the action of gravity and arc ***,the relationships among arc energy,arc time,welding force,electric resistivity,temperature and mass change on contacts were discussed,which indicated that the mass loss on cathode was mainly caused by the fracture of molten bridge.