Oxidation and interdiffusion behavior of NiAlY/AlCrTaTiZr coating on Fe–Cr alloy prepared by magnetron sputtering
An AlCrTaTiZr high-entropy alloy (HEA) as a diffusion barrier was prepared by sputtering to suppress interdiffusion across the NiAlY/Fe–Cr alloy interface. The oxidation and interdiffusion behavior of NiAlY coatings with and without the HEA diffusion barrier were investigated at 850 °C. The results...
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424027832 |
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| author | Yuanmi Zhang Meifeng Li Junpin Lin Chungen Zhou |
| author_facet | Yuanmi Zhang Meifeng Li Junpin Lin Chungen Zhou |
| author_sort | Yuanmi Zhang |
| collection | DOAJ |
| description | An AlCrTaTiZr high-entropy alloy (HEA) as a diffusion barrier was prepared by sputtering to suppress interdiffusion across the NiAlY/Fe–Cr alloy interface. The oxidation and interdiffusion behavior of NiAlY coatings with and without the HEA diffusion barrier were investigated at 850 °C. The results indicate the oxidation mass gain of NiAlY and NiAlY/AlCrTaTiZr coatings were 0.45 and 0.39 mg cm−2 after 100 h, respectively. The thickness of the interdiffusion zone (IDZ) in the composite coating was thinner than that in the HEA-free layer. The HEA layer serves as an effective barrier against the interdiffusion between the NiAlY coating and the substrate, maintaining the high aluminium content in the coating and inhibiting the formation of brittle intermetallic phases in IDZ. Consequently, oxidation resistance of the composite coating is increased. |
| format | Article |
| id | doaj-art-08ffdf5d37f44a8387b649dba5456a39 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-08ffdf5d37f44a8387b649dba5456a392024-12-26T08:56:07ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013394959506Oxidation and interdiffusion behavior of NiAlY/AlCrTaTiZr coating on Fe–Cr alloy prepared by magnetron sputteringYuanmi Zhang0Meifeng Li1Junpin Lin2Chungen Zhou3Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, ChinaCollege of Engineering, Eastern Institute of Technology, Ningbo, China; Corresponding author.State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, ChinaDepartment of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China; Corresponding author.An AlCrTaTiZr high-entropy alloy (HEA) as a diffusion barrier was prepared by sputtering to suppress interdiffusion across the NiAlY/Fe–Cr alloy interface. The oxidation and interdiffusion behavior of NiAlY coatings with and without the HEA diffusion barrier were investigated at 850 °C. The results indicate the oxidation mass gain of NiAlY and NiAlY/AlCrTaTiZr coatings were 0.45 and 0.39 mg cm−2 after 100 h, respectively. The thickness of the interdiffusion zone (IDZ) in the composite coating was thinner than that in the HEA-free layer. The HEA layer serves as an effective barrier against the interdiffusion between the NiAlY coating and the substrate, maintaining the high aluminium content in the coating and inhibiting the formation of brittle intermetallic phases in IDZ. Consequently, oxidation resistance of the composite coating is increased.http://www.sciencedirect.com/science/article/pii/S2238785424027832High-entropy alloyDiffusion barrierMagnetron sputtering coatingOxidationInterdiffusion coefficient |
| spellingShingle | Yuanmi Zhang Meifeng Li Junpin Lin Chungen Zhou Oxidation and interdiffusion behavior of NiAlY/AlCrTaTiZr coating on Fe–Cr alloy prepared by magnetron sputtering Journal of Materials Research and Technology High-entropy alloy Diffusion barrier Magnetron sputtering coating Oxidation Interdiffusion coefficient |
| title | Oxidation and interdiffusion behavior of NiAlY/AlCrTaTiZr coating on Fe–Cr alloy prepared by magnetron sputtering |
| title_full | Oxidation and interdiffusion behavior of NiAlY/AlCrTaTiZr coating on Fe–Cr alloy prepared by magnetron sputtering |
| title_fullStr | Oxidation and interdiffusion behavior of NiAlY/AlCrTaTiZr coating on Fe–Cr alloy prepared by magnetron sputtering |
| title_full_unstemmed | Oxidation and interdiffusion behavior of NiAlY/AlCrTaTiZr coating on Fe–Cr alloy prepared by magnetron sputtering |
| title_short | Oxidation and interdiffusion behavior of NiAlY/AlCrTaTiZr coating on Fe–Cr alloy prepared by magnetron sputtering |
| title_sort | oxidation and interdiffusion behavior of nialy alcrtatizr coating on fe cr alloy prepared by magnetron sputtering |
| topic | High-entropy alloy Diffusion barrier Magnetron sputtering coating Oxidation Interdiffusion coefficient |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424027832 |
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