期刊
TRIBOLOGY INTERNATIONAL
卷 163, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2021.107195
关键词
High-entropy alloy films; DC magnetron sputtering; Plasma nitriding; Tribological behavior
资金
- National Natural Science Foundation of China [51905524, 52005113]
- China Postdoctoral Science Foundation [2020M682640]
Plasma nitriding was used to improve the tribological properties of AlCrTiV and AlCrTiVSi high-entropy alloy films, resulting in significantly improved microstructure and tribological properties. The treatment led to increased nano-hardness, reduced wear degree or wear rate, and the plasma-nitrided AlCrTiV HEA film exhibited the lowest friction coefficient and best wear-resistance.
Plasma nitriding was used to improve the tribological properties of AlCrTiV and AlCrTiVSi high-entropy alloy (HEA) films. The results indicated that after plasma nitriding, the microstructure and tribological property were improved greatly. For plasma-nitrided AlCrTiV, it is still composed of a single BCC solid solution but with a decreased lattice constant, while for plasma-nitrided AlCrTiVSi, a new V4.75Si3N0.58 nitride phase forms in the amorphous matrix, which all lead to the increase of nano-hardness, promoting the reduction of wear degree or wear rate against GCr15 and Al2O3. Due to the perfect balance of hardness and toughness, the plasma-nitrided AlCrTiV HEA film has the lowest friction coefficient (against Al2O3) and the best wear-resistance.
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