Effect of Yttrium on the Microstructure and Properties of Pt-Ir Electrical Contact Materials

3rd Annual International Workshop on Materials Science and Engineering

Wang, Saibei^1,2,3 ; Sun, Yong^3 ; Wang, Song^1,2 ; Peng, Mingjun^3 ; Liu, Manmen^1,2 ; Duan, Yonghua^3 ; Chen, Yongtai^1,2 ; Yang, Youcai^1,2 ; Chen, Song^1,2 ; Li, Aikun^1,2 ; Xie, Ming^1,2

State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Sino-platinum Metals Co. Ltd., Keji Road 988, Kunming, China^1

Kunming Institute of Precious Metals, Keji Road 988, Kunming, China^2

School of Material Science and Engineering, Kunming University of Science and Technology, Wenchang road 68, Kunming, China^3

关键词: Directional changes;    Electrical contact material;    Electrical contacts;    Electronic balances;    Erosion morphology;    High frequency induction;    Material transfers;    Microstructure and properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/250/1/012017/pdf
DOI  :  10.1088/1757-899X/250/1/012017

来源: IOP

【 摘 要 】

The Pt-10Ir and Pt-10Ir-1Y were prepared by high frequency induction melting, then the samples were obtained by powder metallurgy, hot extrusion and drawing. The influence of Y addition on microstructure and electrical contact properties of Pt-10Ir alloy has been investigated by using optical microscopy, SEM, electronic balance and the contact material test system. The results show that the addition of Y leads to the micro-structural refinement and directional change of material transfer, but has almost no influence on erosion morphology.