Oxygen-driven shell-like microstructure: a pathway to high-performance PVD Cr coatings for metal protection
Abstract Chromium (Cr) coatings, known for their corrosion resistance and luster, often suffer from coarse columnar grains when fabricated by physical vapor deposition (PVD), limiting their performance. This study employs high-power impulse magnetron sputtering (HiPIMS) with oxygen doping (8.3 at.%)...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-05-01
|
| Series: | npj Materials Degradation |
| Online Access: | https://doi.org/10.1038/s41529-025-00591-w |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849733878719184896 |
|---|---|
| author | Meiqi Zhang Li Wang Zhenyu Wang Yong Cheng Guanshui Ma Shiyao Tan Peiling Ke Aiying Wang |
| author_facet | Meiqi Zhang Li Wang Zhenyu Wang Yong Cheng Guanshui Ma Shiyao Tan Peiling Ke Aiying Wang |
| author_sort | Meiqi Zhang |
| collection | DOAJ |
| description | Abstract Chromium (Cr) coatings, known for their corrosion resistance and luster, often suffer from coarse columnar grains when fabricated by physical vapor deposition (PVD), limiting their performance. This study employs high-power impulse magnetron sputtering (HiPIMS) with oxygen doping (8.3 at.%) to enhance Cr coatings on 316 L stainless steel. The optimized coating exhibits a unique shell-like microstructure, increasing hardness by 55% and improving crack resistance. Oxygen doping also reduces corrosion current density by over an order of magnitude, forming a continuous, low-defect amorphous passivation film for superior corrosion protection. This approach offers a simple yet effective strategy to advance Cr coating performance for industrial applications. |
| format | Article |
| id | doaj-art-71abe55fdc274ee5b0595ec3f4e9b33e |
| institution | DOAJ |
| issn | 2397-2106 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Materials Degradation |
| spelling | doaj-art-71abe55fdc274ee5b0595ec3f4e9b33e2025-08-20T03:07:56ZengNature Portfolionpj Materials Degradation2397-21062025-05-019111110.1038/s41529-025-00591-wOxygen-driven shell-like microstructure: a pathway to high-performance PVD Cr coatings for metal protectionMeiqi Zhang0Li Wang1Zhenyu Wang2Yong Cheng3Guanshui Ma4Shiyao Tan5Peiling Ke6Aiying Wang7State Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of SciencesState Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of SciencesState Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of SciencesState Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of SciencesState Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of SciencesState Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of SciencesState Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of SciencesState Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of SciencesAbstract Chromium (Cr) coatings, known for their corrosion resistance and luster, often suffer from coarse columnar grains when fabricated by physical vapor deposition (PVD), limiting their performance. This study employs high-power impulse magnetron sputtering (HiPIMS) with oxygen doping (8.3 at.%) to enhance Cr coatings on 316 L stainless steel. The optimized coating exhibits a unique shell-like microstructure, increasing hardness by 55% and improving crack resistance. Oxygen doping also reduces corrosion current density by over an order of magnitude, forming a continuous, low-defect amorphous passivation film for superior corrosion protection. This approach offers a simple yet effective strategy to advance Cr coating performance for industrial applications.https://doi.org/10.1038/s41529-025-00591-w |
| spellingShingle | Meiqi Zhang Li Wang Zhenyu Wang Yong Cheng Guanshui Ma Shiyao Tan Peiling Ke Aiying Wang Oxygen-driven shell-like microstructure: a pathway to high-performance PVD Cr coatings for metal protection npj Materials Degradation |
| title | Oxygen-driven shell-like microstructure: a pathway to high-performance PVD Cr coatings for metal protection |
| title_full | Oxygen-driven shell-like microstructure: a pathway to high-performance PVD Cr coatings for metal protection |
| title_fullStr | Oxygen-driven shell-like microstructure: a pathway to high-performance PVD Cr coatings for metal protection |
| title_full_unstemmed | Oxygen-driven shell-like microstructure: a pathway to high-performance PVD Cr coatings for metal protection |
| title_short | Oxygen-driven shell-like microstructure: a pathway to high-performance PVD Cr coatings for metal protection |
| title_sort | oxygen driven shell like microstructure a pathway to high performance pvd cr coatings for metal protection |
| url | https://doi.org/10.1038/s41529-025-00591-w |
| work_keys_str_mv | AT meiqizhang oxygendrivenshelllikemicrostructureapathwaytohighperformancepvdcrcoatingsformetalprotection AT liwang oxygendrivenshelllikemicrostructureapathwaytohighperformancepvdcrcoatingsformetalprotection AT zhenyuwang oxygendrivenshelllikemicrostructureapathwaytohighperformancepvdcrcoatingsformetalprotection AT yongcheng oxygendrivenshelllikemicrostructureapathwaytohighperformancepvdcrcoatingsformetalprotection AT guanshuima oxygendrivenshelllikemicrostructureapathwaytohighperformancepvdcrcoatingsformetalprotection AT shiyaotan oxygendrivenshelllikemicrostructureapathwaytohighperformancepvdcrcoatingsformetalprotection AT peilingke oxygendrivenshelllikemicrostructureapathwaytohighperformancepvdcrcoatingsformetalprotection AT aiyingwang oxygendrivenshelllikemicrostructureapathwaytohighperformancepvdcrcoatingsformetalprotection |