期刊
APPLIED SURFACE SCIENCE
卷 428, 期 -, 页码 404-414出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2017.09.166
关键词
Magnetron sputtering; F690 steel; CrN monolayer; CrN/AlN nano-multilayer; Tribocorrosion behavior
类别
资金
- National Key R&D Program of China [2017YFB0702302]
- National Basic Research Program of China (973 Program) [2014CB643302]
- Science and Technology Project of Guangdong Province in China [2015B010122003, 2015B090926009]
- Science and Technology Project of Guangzhou City in China [201604046009]
The CrN monolayer and CrN/AlN nano-multilayer coating were successfully fabricated by reactive magnetron sputtering on F690 steel. The results show that CrN monolayer exhibits a face centered cubic crystalline structure with (111) preferred orientation and CrN/AlN nano-multilayer coating has a (200) preferred orientation. This design of the nano-multilayer can interrupt the continuous growth of columnar crystals making the coating denser. The CrN/AlN nano-multilayer coating has a better wear resistance and corrosion resistance compared with the CrN monolayer coating. The tribocorrosion tests reveal that the evolution of potential and current density of F690 steel and CrN monolayer or CrN/AlN nano-multilayer coating see an opposite trend under the simultaneous action of wear and corrosion, which is attributed to that F690 steel is a non-passive material and PVD coatings is a passive material. The nano-multilayer structure has a good Pore Sealing Effect, and the corrosive solution is difficult to pass through the coating to corrode the substrate. (C) 2017 Elsevier B.V. All rights reserved.
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