Investigation of current-carrying tribological properties and mechanisms of in-situ 2TiB2/Cu-3B composite

被引：0
作者：
Yang, Tian [1 ]
Cao, Fei [1 ,2 ]
Jiang, Yihui [1 ,2 ]
Wang, Yanfang [1 ,2 ]
Li, Pengtao [1 ,2 ]
Zhou, Wei [3 ]
Zhang, Xingde [1 ]
Huang, Di [1 ]
Liang, Shuhua [1 ,2 ]
机构：
[1] Xian Univ Technol, Sch Mat Sci & Engn, Shaanxi Prov Key Lab Elect Mat & Infiltrat Technol, Xian 710048, Shaanxi, Peoples R China
[2] Xian Univ Technol, Engn Res Ctr Conducting Mat & Composite Technol, Sch Mat Sci & Engn, Minist Educ, Xian 710048, Shaanxi, Peoples R China
[3] Henan Acad Sci, Inst Mat Genome Engn, Zhengzhou 450046, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2025年 / 207卷
基金：
中国国家自然科学基金;
关键词：
Current-carrying friction; Copper matrix composites; TiB; 2; particles; Anti-friction; WEAR PROPERTIES; FREE-ENERGY; FRICTION; MICROSTRUCTURES; BEHAVIORS; TIB2;
D O I：
10.1016/j.triboint.2025.110612
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A novel 2TiB2/Cu-3B composite was fabricated via in-situ reactive casting technology, and its current-carrying tribological properties and wear mechanisms under sliding electrical contact conditions were systematically investigated. The synergistic effect between the anti-friction B phase and wear-resistant TiB2 particles significantly enhanced the wear resistance of the composites. Compared with 2TiB2/Cu composite, the coefficient of friction and wear rate of the 2TiB2/Cu-3B composite decreased by 63 % and 89 %, respectively. The dual-phase reinforcements ensured efficient current transmission while minimizing friction. The anti-friction layer regenerated during friction, while the uniform distribution of wear-resistant phases prevented overheating and delamination. Based on these synergistic mechanisms, 2TiB2/Cu-3B composite exhibits excellent currentcarrying and wear resistance properties, providing valuable insights for designing current-carrying materials in electrical contact applications.
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页数：11
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