JOURNAL ARTICLE

Current-carrying tribological behavior of copper alloy matrix and molybdenum alloy coating at high current density.

  • Published In: Journal of Vacuum Science & Technology: Part A-Vacuums, Surfaces & Films, 2024, v. 42, n. 2. P. 1 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Zhou, Yu-jie; Li, Yang; Tan, Na; Lu, Bing-wen; Yin, Wei; Zhang, Guo-liang; Liu, Meng; Cai, Yu-Jun; Deng, Qi-yao; Kong, Xu 3 of 3

Abstract

This article focuses on enhancing the current-carrying friction and wear resistance of copper alloy components by applying high melting point molybdenum-based coatings using laser cladding technology. The study demonstrates that these molybdenum-based coatings significantly reduce aluminum adhesion, surface arcing, and friction interface temperature during high-current density (10^6 A/m²) friction tests, thereby preserving the Al₂O₃ self-lubricating phase and reducing stress layer thickness by about seven times compared to uncoated copper alloys. Experimental results combined with simulations reveal that the coatings improve wear resistance and reduce thermal damage, suggesting their potential for extending the service life of electrically conductive wear-resistant copper alloy parts under extreme conditions.

Additional Information

  • Source:Journal of Vacuum Science & Technology: Part A-Vacuums, Surfaces & Films. 2024/03, Vol. 42, Issue 2, p1
  • Document Type:Article
  • Subject Area:Geology
  • Publication Date:2024
  • ISSN:07342101
  • DOI:10.1116/6.0003313
  • Accession Number:175796148
  • Copyright Statement:Copyright of Journal of Vacuum Science & Technology: Part A-Vacuums, Surfaces & Films is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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