Probing layered structure of Inconel 625 coatings prepared by magnetron sputtering
Abstract
Coating/substrate interface and oxide layers present in Inconel 625 film may cause significant impacts on its corrosion behavior. However, layered structure of Inconel 625 coatings remains poorly understood due to its requirement of high spatial resolution. Here we have applied X-ray reflectometry (XRR) to probe the layered structure of magnetron-sputtered Inconel 625 film with atomic spatial resolution. Our results indicate that there exists a 2 nm thick Cr-rich Inconel sublayer underneath the principal film. On top of the principal film, it is found a 2 nm thick oxide layer mainly consisting of NiO. In addition, we detected ~2 Å contamination layer on the sapphire substrate, although argon ion sputter cleaning had been applied to the substrate prior to deposition. By comparing the coatings with different deposition time, we observed that the thickness of principal Inconel 625 layer grows linearly with deposition time, with all other layers remaining constant. Our findings provide insight into the layered structures of Inconel 625 coatings with atomic-scale spatial resolution, and provide directions for future efforts that aim to improve the corrosion resistance of Inconel 625 coatings.
- Authors:
-
[1];
[4];
[4];
- Rensselaer Polytechnic Inst., Troy, NY (United States)
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). Center for Neutron Research; Georgetown Univ., Washington, DC (United States)
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). Center for Neutron Research
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Publication Date:
- Research Org.:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States); Rensselaer Polytechnic Inst., Troy, NY (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- OSTI Identifier:
- 1770911
- Alternate Identifier(s):
- OSTI ID: 1777504; OSTI ID: 2282649
- Report Number(s):
- NREL/JA-5700-77748
Journal ID: ISSN 0257-8972; MainId:30663;UUID:3d029841-e625-4d06-887f-0e5a96def226;MainAdminID:19945
- Grant/Contract Number:
- AC36-08GO28308; EE0008380
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Surface and Coatings Technology
- Additional Journal Information:
- Journal Volume: 405; Journal ID: ISSN 0257-8972
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Inconel 625 alloy coating; magnetron sputtering; coating/substrate interface; oxide layer; x-ray reflectometry; 14 SOLAR ENERGY; 25 ENERGY STORAGE; 42 ENGINEERING; Inconel 625 alloy coating, Magnetron sputtering, Coating/substrate interface, Oxide layer, X-ray reflectometry
Citation Formats
Feng, Jinghua, Yuan, Guangcui, Mao, Li, Leão, Juscelino B., Bedell, Ryan, Ramic, Kemal, de Stefanis, Emily, Zhao, Youyang, Vidal, Judith, and Liu, Li. Probing layered structure of Inconel 625 coatings prepared by magnetron sputtering. United States: N. p., 2020.
Web. doi:10.1016/j.surfcoat.2020.126545.
Feng, Jinghua, Yuan, Guangcui, Mao, Li, Leão, Juscelino B., Bedell, Ryan, Ramic, Kemal, de Stefanis, Emily, Zhao, Youyang, Vidal, Judith, & Liu, Li. Probing layered structure of Inconel 625 coatings prepared by magnetron sputtering. United States. https://doi.org/10.1016/j.surfcoat.2020.126545
Feng, Jinghua, Yuan, Guangcui, Mao, Li, Leão, Juscelino B., Bedell, Ryan, Ramic, Kemal, de Stefanis, Emily, Zhao, Youyang, Vidal, Judith, and Liu, Li. Tue .
"Probing layered structure of Inconel 625 coatings prepared by magnetron sputtering". United States. https://doi.org/10.1016/j.surfcoat.2020.126545. https://www.osti.gov/servlets/purl/1770911.
@article{osti_1770911,
title = {Probing layered structure of Inconel 625 coatings prepared by magnetron sputtering},
author = {Feng, Jinghua and Yuan, Guangcui and Mao, Li and Leão, Juscelino B. and Bedell, Ryan and Ramic, Kemal and de Stefanis, Emily and Zhao, Youyang and Vidal, Judith and Liu, Li},
abstractNote = {Coating/substrate interface and oxide layers present in Inconel 625 film may cause significant impacts on its corrosion behavior. However, layered structure of Inconel 625 coatings remains poorly understood due to its requirement of high spatial resolution. Here we have applied X-ray reflectometry (XRR) to probe the layered structure of magnetron-sputtered Inconel 625 film with atomic spatial resolution. Our results indicate that there exists a 2 nm thick Cr-rich Inconel sublayer underneath the principal film. On top of the principal film, it is found a 2 nm thick oxide layer mainly consisting of NiO. In addition, we detected ~2 Å contamination layer on the sapphire substrate, although argon ion sputter cleaning had been applied to the substrate prior to deposition. By comparing the coatings with different deposition time, we observed that the thickness of principal Inconel 625 layer grows linearly with deposition time, with all other layers remaining constant. Our findings provide insight into the layered structures of Inconel 625 coatings with atomic-scale spatial resolution, and provide directions for future efforts that aim to improve the corrosion resistance of Inconel 625 coatings.},
doi = {10.1016/j.surfcoat.2020.126545},
journal = {Surface and Coatings Technology},
number = ,
volume = 405,
place = {United States},
year = {Tue Oct 27 00:00:00 EDT 2020},
month = {Tue Oct 27 00:00:00 EDT 2020}
}
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