期刊
APPLIED SURFACE SCIENCE
卷 573, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2021.151628
关键词
Metallic glass; Corrosion; Friction; Wear
类别
资金
- Education and Research Promotion Program of KOREATECH
- National Key Research and Development Program of China [2017YFA0403400]
- National Natural ScienceFounda-tion of China [U1832203, 11975202]
- Fundamental Research Funds for the Central Universities
The study found that the properties of the oxide layers on the surface of Ni62Nb38 alloy differ in different acidic solutions, affecting friction and wear. After corrosion in nitric acid, wear is reduced; while in hydrochloric acid, plowing is suppressed and adhesion and material transfer dominate friction and wear.
The onset of corrosion in 0.1 M nitric and hydrochloric aqueous solutions and its effect on the friction and wear of a Ni62Nb38 MG have been investigated by AFM, XPS and SEM. Depending on the acidic solutions, the properties of the oxide layers grown on Ni62Nb38 MG differ, which affects the tribological response of the surface. A clear transition from shearing to ploughing friction is observed for as-spun Ni62Nb38. After etching in nitric acid, the onset of ploughing is retarded, and wear is reduced. In contrast, ploughing is suppressed after immersion in HCl. In that case friction and wear are dominated by adhesion and material transfer.
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