Characterizing Surface Profiles of Tungsten-based Electrodes under Intense Pulsed Arcs

Ruoyu Han, Guizi Xu, Qian Yuan, Jinyue Geng, Jiawei Wu, Qiong Tang

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

This paper presented the detailed results of surface profiles of tungsten-based electrodes (W-Ni-Fe and W-Cu) under 100-kA level repetitive pulsed arcs for 10, 000 times. Focusing on the surface morphology, a series of statistical parameters (surface roughness, etc.) were adopted to quantitatively characterize the features of electrode surface. Meanwhile, the evolution of those parameters in the aging process was summarized and analyzed systematically. The results indicated that the contour of the electrode changed in both general shape and micro-structure. For the macroscopic contour, the characteristic diameter of the electrode tip decayed from ~21 mm to less than 18 mm after the test. As for the micro-fluctuations (μm level), various erosion patterns were found in anode and cathode, or in W-Ni-Fe and W-Cu electrodes. Then, possible mechanisms of those phenomena were discussed. Finally, the Fast Fourier Transform (FFT) method was adopted to study the spatial pseudo-periodicity of the electrode profiles. The four materials had a rank on erosion resistance, namely, 97WNiFe>93WNiFe90WNiFe>90WCu.

源语言英语
主期刊名Proceedings of 2021 IEEE 4th International Electrical and Energy Conference, CIEEC 2021
出版商Institute of Electrical and Electronics Engineers Inc.
ISBN(电子版)9781728171494
DOI
出版状态已出版 - 28 5月 2021
活动4th IEEE China International Electrical and Energy Conference, CIEEC 2021 - Wuhan, 中国
期限: 28 5月 202130 5月 2021

出版系列

姓名Proceedings of 2021 IEEE 4th International Electrical and Energy Conference, CIEEC 2021

会议

会议4th IEEE China International Electrical and Energy Conference, CIEEC 2021
国家/地区中国
Wuhan
时期28/05/2130/05/21

引用此

Han, R., Xu, G., Yuan, Q., Geng, J., Wu, J., & Tang, Q. (2021). Characterizing Surface Profiles of Tungsten-based Electrodes under Intense Pulsed Arcs. 在 Proceedings of 2021 IEEE 4th International Electrical and Energy Conference, CIEEC 2021 文章 9510868 (Proceedings of 2021 IEEE 4th International Electrical and Energy Conference, CIEEC 2021). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CIEEC50170.2021.9510868