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Only a few materials demonstrate ultra-low wear performance in specific fragile environments. we propose a self-adaptive wear strategy to achieve super wear-resistant properties in high moisture through the super-hard substrate and in-situ lubrication layer. We prepare “self-adaptive” super wear-resistant WB4-B ceramics with a wear rate of 10-7 mm3N-1m-1 in dry environments, relying on the superhard of the WB4 and B dual-phase to maintain microstructural stability. The wear rate reduces further to 10-8 mm3N-1m-1, accompanied by a low friction coefficient of about 0.1, by in situ H3BO3/WO3 lubrication film in the moist environment. In addition, this super wear-resistance performance remains stable under high contact stress of 2.81 GPa and long friction cycles of 1 × 105. The super wear-resistant resistance of WB4-B ceramics, as well as demonstrating excellent adaptability in harsh conditions, improve component performance and reliability in environments often considered challenging for traditional materials.
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© The author(s) 2024
The articles published in this open access journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/).