Thermal cycling behavior of EB-PVD TBCs with Pt modified aluminide bond coat
The（Ni, Pt）Al bond coats were prepared on the surface of nickel base single crystal superalloy by chemical vapor deposition（CVD）, and then YSZ ceramic coats were directly deposited on the surface of bond coats by electron beam physical vapor deposition（EB-PVD）.The influence of phase constituent of b...
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| Format: | Article |
| Language: | zho |
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Journal of Aeronautical Materials
2023-08-01
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| Series: | Journal of Aeronautical Materials |
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| Online Access: | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2023.000058 |
| _version_ | 1797752406230958080 |
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| author | HE Wenxie ZHEN Zhen WANG Xin PENG Chao MU Rende HE Limin HUANG Guanghong XU Zhenhua |
| author_facet | HE Wenxie ZHEN Zhen WANG Xin PENG Chao MU Rende HE Limin HUANG Guanghong XU Zhenhua |
| author_sort | HE Wenxie |
| collection | DOAJ |
| description | The（Ni, Pt）Al bond coats were prepared on the surface of nickel base single crystal superalloy by chemical vapor deposition（CVD）, and then YSZ ceramic coats were directly deposited on the surface of bond coats by electron beam physical vapor deposition（EB-PVD）.The influence of phase constituent of bond coat on the cyclic oxidation behavior of （Ni, Pt）Al/YSZ thermal barrier coatings was investigated in detail. The phase structure, morphology and chemical composition of the coatings were analyzed. The experimental results show that the bond coat is mainly composed of β-（Ni,Pt）Al and PtAl2 phases and the contents of the as-deposited bond coat are primarily including Ni, Al, Pt, Co and Cr elements. The spallation location of the TBCs probably occurs at the interface of TGO layer and bond coat, inside of TGO layer and within the bond coat. After thermal cycling test, it is found that the spallation may occur in the interior and interface of TGO and adhesive layer. With the extension of thermal exposure time, the residual stress located at the TGO layer decreases gradually in total. Therefore, controlling the precursor activity, Pt/Al element content, inhibiting the formation of brittle PtAl2 phase, improving the interfacial toughness of TGO layer/bonding layer, and reducing the stress-strain level of TGO layer are important ways to extend the thermal cycling life of（Ni, Pt）Al/YSZ thermal barrier coatings. |
| first_indexed | 2024-03-12T17:02:53Z |
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| institution | Directory Open Access Journal |
| issn | 1005-5053 |
| language | zho |
| last_indexed | 2024-03-12T17:02:53Z |
| publishDate | 2023-08-01 |
| publisher | Journal of Aeronautical Materials |
| record_format | Article |
| series | Journal of Aeronautical Materials |
| spelling | doaj.art-5d8e68bd273842a1b970eb28635ba14f2023-08-07T07:13:25ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50532023-08-01434172410.11868/j.issn.1005-5053.2023.0000582023-0058Thermal cycling behavior of EB-PVD TBCs with Pt modified aluminide bond coatHE Wenxie0ZHEN Zhen1WANG Xin2PENG Chao3MU Rende4HE Limin5HUANG Guanghong6XU Zhenhua7Guiyang AECC Power Precision Casting Co., LTD, Guiyang 550014, ChinaAviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material，AECC Beijing Institute of Aeronautical Materials，Beijing 100095, ChinaAviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material，AECC Beijing Institute of Aeronautical Materials，Beijing 100095, ChinaAviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material，AECC Beijing Institute of Aeronautical Materials，Beijing 100095, ChinaAviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material，AECC Beijing Institute of Aeronautical Materials，Beijing 100095, ChinaAviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material，AECC Beijing Institute of Aeronautical Materials，Beijing 100095, ChinaAviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material，AECC Beijing Institute of Aeronautical Materials，Beijing 100095, ChinaAviation Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material，AECC Beijing Institute of Aeronautical Materials，Beijing 100095, ChinaThe（Ni, Pt）Al bond coats were prepared on the surface of nickel base single crystal superalloy by chemical vapor deposition（CVD）, and then YSZ ceramic coats were directly deposited on the surface of bond coats by electron beam physical vapor deposition（EB-PVD）.The influence of phase constituent of bond coat on the cyclic oxidation behavior of （Ni, Pt）Al/YSZ thermal barrier coatings was investigated in detail. The phase structure, morphology and chemical composition of the coatings were analyzed. The experimental results show that the bond coat is mainly composed of β-（Ni,Pt）Al and PtAl2 phases and the contents of the as-deposited bond coat are primarily including Ni, Al, Pt, Co and Cr elements. The spallation location of the TBCs probably occurs at the interface of TGO layer and bond coat, inside of TGO layer and within the bond coat. After thermal cycling test, it is found that the spallation may occur in the interior and interface of TGO and adhesive layer. With the extension of thermal exposure time, the residual stress located at the TGO layer decreases gradually in total. Therefore, controlling the precursor activity, Pt/Al element content, inhibiting the formation of brittle PtAl2 phase, improving the interfacial toughness of TGO layer/bonding layer, and reducing the stress-strain level of TGO layer are important ways to extend the thermal cycling life of（Ni, Pt）Al/YSZ thermal barrier coatings.http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2023.000058thermal barrier coatingsthermal cyclingphase structureinterfacefailure |
| spellingShingle | HE Wenxie ZHEN Zhen WANG Xin PENG Chao MU Rende HE Limin HUANG Guanghong XU Zhenhua Thermal cycling behavior of EB-PVD TBCs with Pt modified aluminide bond coat Journal of Aeronautical Materials thermal barrier coatings thermal cycling phase structure interface failure |
| title | Thermal cycling behavior of EB-PVD TBCs with Pt modified aluminide bond coat |
| title_full | Thermal cycling behavior of EB-PVD TBCs with Pt modified aluminide bond coat |
| title_fullStr | Thermal cycling behavior of EB-PVD TBCs with Pt modified aluminide bond coat |
| title_full_unstemmed | Thermal cycling behavior of EB-PVD TBCs with Pt modified aluminide bond coat |
| title_short | Thermal cycling behavior of EB-PVD TBCs with Pt modified aluminide bond coat |
| title_sort | thermal cycling behavior of eb pvd tbcs with pt modified aluminide bond coat |
| topic | thermal barrier coatings thermal cycling phase structure interface failure |
| url | http://jam.biam.ac.cn/article/doi/10.11868/j.issn.1005-5053.2023.000058 |
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