Failure behavior study of EB-PVD TBCs under CMAS corrosion and thermal shock cycles
Calcia-magnesia-alumino-silicate (CMAS) erosion has become a major obstacle, limiting the operating temperature and service life of Thermal barrier coatings (TBCs) in aircraft engines. Constructing simulation environments that replicate TBCs’ working conditions and exploring online, non-destructive...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2024-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ad8864 |
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| author | Yi Luo Jiawei Zhang Qicai Dong Aimin Ning Yun Yu |
| author_facet | Yi Luo Jiawei Zhang Qicai Dong Aimin Ning Yun Yu |
| author_sort | Yi Luo |
| collection | DOAJ |
| description | Calcia-magnesia-alumino-silicate (CMAS) erosion has become a major obstacle, limiting the operating temperature and service life of Thermal barrier coatings (TBCs) in aircraft engines. Constructing simulation environments that replicate TBCs’ working conditions and exploring online, non-destructive detection techniques are reliable approaches to studying coatings’ failure, representing both a global research hotspot and a challenge in this field. The paper presents an initial endeavor to establish a simulation experiment for TBCs in aviation-engine within a CMAS environment. Experimental results show that electron beam physical vapor deposition (EB-PVD) Y2O3-stabilized ZrO2 (YSZ), one of the mainstream TBCs technologies, produced 20% surface spallation after 50 thermal-shock cycles under simulated CMAS corrosion conditions. Testing and analysis of the macroscopic and microscopic structures of the failed samples, combined with SEM, EDS, and XRD findings, revealed significant physical and chemical interactions between the ceramic layer and CMAS deposits, as well as phase transformation within the coatings, leading to substantial alterations in mechanical properties and ultimately causing the failure of EB-PVD YSZ. |
| format | Article |
| id | doaj-art-0fa1b3d6ea8b4ad19f720195593874c3 |
| institution | OA Journals |
| issn | 2053-1591 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-0fa1b3d6ea8b4ad19f720195593874c32025-08-20T02:18:03ZengIOP PublishingMaterials Research Express2053-15912024-01-01111111640110.1088/2053-1591/ad8864Failure behavior study of EB-PVD TBCs under CMAS corrosion and thermal shock cyclesYi Luo0https://orcid.org/0000-0002-7451-2856Jiawei Zhang1Qicai Dong2Aimin Ning3Yun Yu4Guangxi Vocational College of Water Resources and Electric Power, Nanning, 530000, People’s Republic of ChinaGuangxi Vocational College of Water Resources and Electric Power, Nanning, 530000, People’s Republic of ChinaGuangxi Vocational College of Water Resources and Electric Power, Nanning, 530000, People’s Republic of ChinaGuangxi Vocational College of Water Resources and Electric Power, Nanning, 530000, People’s Republic of ChinaGuangxi Vocational College of Water Resources and Electric Power, Nanning, 530000, People’s Republic of ChinaCalcia-magnesia-alumino-silicate (CMAS) erosion has become a major obstacle, limiting the operating temperature and service life of Thermal barrier coatings (TBCs) in aircraft engines. Constructing simulation environments that replicate TBCs’ working conditions and exploring online, non-destructive detection techniques are reliable approaches to studying coatings’ failure, representing both a global research hotspot and a challenge in this field. The paper presents an initial endeavor to establish a simulation experiment for TBCs in aviation-engine within a CMAS environment. Experimental results show that electron beam physical vapor deposition (EB-PVD) Y2O3-stabilized ZrO2 (YSZ), one of the mainstream TBCs technologies, produced 20% surface spallation after 50 thermal-shock cycles under simulated CMAS corrosion conditions. Testing and analysis of the macroscopic and microscopic structures of the failed samples, combined with SEM, EDS, and XRD findings, revealed significant physical and chemical interactions between the ceramic layer and CMAS deposits, as well as phase transformation within the coatings, leading to substantial alterations in mechanical properties and ultimately causing the failure of EB-PVD YSZ.https://doi.org/10.1088/2053-1591/ad8864EB-PVD TBCsCMAS corrosionthermal-shockfailure behaviorstudy |
| spellingShingle | Yi Luo Jiawei Zhang Qicai Dong Aimin Ning Yun Yu Failure behavior study of EB-PVD TBCs under CMAS corrosion and thermal shock cycles Materials Research Express EB-PVD TBCs CMAS corrosion thermal-shock failure behavior study |
| title | Failure behavior study of EB-PVD TBCs under CMAS corrosion and thermal shock cycles |
| title_full | Failure behavior study of EB-PVD TBCs under CMAS corrosion and thermal shock cycles |
| title_fullStr | Failure behavior study of EB-PVD TBCs under CMAS corrosion and thermal shock cycles |
| title_full_unstemmed | Failure behavior study of EB-PVD TBCs under CMAS corrosion and thermal shock cycles |
| title_short | Failure behavior study of EB-PVD TBCs under CMAS corrosion and thermal shock cycles |
| title_sort | failure behavior study of eb pvd tbcs under cmas corrosion and thermal shock cycles |
| topic | EB-PVD TBCs CMAS corrosion thermal-shock failure behavior study |
| url | https://doi.org/10.1088/2053-1591/ad8864 |
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