Next Article in Journal
Evaluation of Polymethyl Methacrylate as a Provisional Material in a Fully Digital Workflow for Immediate-Load Complete-Arch Implant-Supported Prostheses over Three Months
Next Article in Special Issue
Defect Analysis and Improvement Method of Eccentric Camshaft Forging by Vertical Upsetting Extrusion Forming
Previous Article in Journal
Interfacial Shear Fracture Behavior of C18150Cu/1060Al/C18150Cu Trilayered Composite at Different Temperatures
Previous Article in Special Issue
In Situ EBSD Observation and Numerical Simulation of Microstructure Evolution and Strain Localization of DP780 Dual-Phase Steel
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Materials
Volume 18
Issue 3
10.3390/ma18030560
materials-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Enhanced Hardness and Tribological Properties of Copper-Based Steel Backing Self-Lubricating Materials with Y2O3 Micro-Doping

by
Mingmao Li
1,
Ningkang Yin
1,
Zhaokui Jei
2,
Zhiying Liu
3,
Jinhan Zhang
1,
Hao Zeng
1,
Hao Huang
1 and
Jingxuan Liu
1,*
1
Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China
2
Jiangxi Hongda Self Lubricating Bearing Co., Ltd., Yingtan 335425, China
3
Yingtan Inspection, Testing and Certification Institute, Yingtan 335001, China
*
Author to whom correspondence should be addressed.
Materials 2025, 18(3), 560; https://doi.org/10.3390/ma18030560
Submission received: 6 January 2025 / Revised: 22 January 2025 / Accepted: 24 January 2025 / Published: 26 January 2025
(This article belongs to the Special Issue Fracture and Fatigue in Metals and Alloys)
Browse Figures
Versions Notes

Abstract

The copper-based steel backing material is prepared using a combination of mechanical alloying and secondary sintering methods. The effect of Y2O3 content on the microstructure, hardness, and tribological properties of the copper-based self-lubricating layer is investigated. The results demonstrate that the addition of Y2O3 enhances the strength of the copper-based self-lubricating layer. Graphite and Y2O3 act synergistically to form a three-dimensional supporting framework, thereby boosting the overall strength of the copper-based composite material and increasing its Brinell hardness by 27%. Additionally, the incorporation of Y2O3 effectively improves the tribological properties of the composite material, significantly reducing wear during the friction process and decreasing the wear rate by 77%. Under the experimental conditions, the optimal Y2O3 content is determined to be 1 wt%.
Keywords: copper-based self-lubricating material; Y2O3-Cu based powder metallurgy; friction and wear; dispersion strengthening; fretting fatigue copper-based self-lubricating material; Y2O3-Cu based powder metallurgy; friction and wear; dispersion strengthening; fretting fatigue
Graphical Abstract

Share and Cite

MDPI and ACS Style

Li, M.; Yin, N.; Jei, Z.; Liu, Z.; Zhang, J.; Zeng, H.; Huang, H.; Liu, J. Enhanced Hardness and Tribological Properties of Copper-Based Steel Backing Self-Lubricating Materials with Y2O3 Micro-Doping. Materials 2025, 18, 560. https://doi.org/10.3390/ma18030560

AMA Style

Li M, Yin N, Jei Z, Liu Z, Zhang J, Zeng H, Huang H, Liu J. Enhanced Hardness and Tribological Properties of Copper-Based Steel Backing Self-Lubricating Materials with Y2O3 Micro-Doping. Materials. 2025; 18(3):560. https://doi.org/10.3390/ma18030560

Chicago/Turabian Style

Li, Mingmao, Ningkang Yin, Zhaokui Jei, Zhiying Liu, Jinhan Zhang, Hao Zeng, Hao Huang, and Jingxuan Liu. 2025. "Enhanced Hardness and Tribological Properties of Copper-Based Steel Backing Self-Lubricating Materials with Y2O3 Micro-Doping" Materials 18, no. 3: 560. https://doi.org/10.3390/ma18030560

APA Style

Li, M., Yin, N., Jei, Z., Liu, Z., Zhang, J., Zeng, H., Huang, H., & Liu, J. (2025). Enhanced Hardness and Tribological Properties of Copper-Based Steel Backing Self-Lubricating Materials with Y2O3 Micro-Doping. Materials, 18(3), 560. https://doi.org/10.3390/ma18030560

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop