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Effects of YSZ deposition process on reactive elements distribution and cyclic oxidation behaviors of a thermal barrier coating system

文献类型：期刊论文

作者Li, Tong1; Li, Wei1; Zhang, Wenlu1,2; Fan, Lianjun1,2; Zhang, Shiyi1,2; Jiang, Sumeng1; Gong, Jun1; Sun, Chao1
刊名CERAMICS INTERNATIONAL
出版日期2024-03-15
卷号50期号:6页码:9323-9331
关键词Thermal barrier coating YSZ deposition process MCrAlY bond coat Reactive elements distribution High-temperature oxidation
ISSN号0272-8842
DOI10.1016/j.ceramint.2023.12.248
通讯作者Li, Wei(wli@imr.ac.cn) ; Jiang, Sumeng(smjiang@imr.ac.cn) ; Sun, Chao(csun@imr.ac.cn)
英文摘要Three coatings including topcoat-free NiCoCrAlYHfZr bond coat and the thermal barrier coating (TBC) system consisting of an 8 wt% Y2O3 stabilized ZrO2 (8YSZ) topcoat and either a NiCoCrAlYHfZr or a NiCoCrAlY bond coat were prepared in this study. The localized enrichment of Hf-rich precipitations within NiCoCrAlYHfZr bond coat was significantly alleviated after the YSZ deposition, instead, the nano-sized HfO2 precipitations formed and linearly distributed along the initial thermal grown oxide (TGO)/bond coat interface. Cyclic oxidation behaviors of the three coatings were evaluated at 1100 degrees C. The results showed that a uniform TGO with fine reactive elements (REs)-rich inclusions was generated in YSZ-NiCoCrAlYHfZr TBC system, alleviating the negative effects resulted from the localized enrichment of Hf-rich precipitations. Besides, co-doping HfZr in NiCoCrAlY bond coat prevented the formation of spinel since HfZr segregating at Al2O3 grain boundaries inhibited the outward diffusion of Ni, Co and Cr from the bond coat, thus significantly improving durability of the TBC system.
资助项目Key Research Program of the Chi- nese Academy of Sciences[2021-2-2] ; Doctoral Scientific Research Foundation Project of LiaoNing Province[2022 -BS-004] ; Science Center for Gas Turbine Project[P2021 -A -IV -002-003]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:001184545100001
出版者ELSEVIER SCI LTD
资助机构Key Research Program of the Chi- nese Academy of Sciences ; Doctoral Scientific Research Foundation Project of LiaoNing Province ; Science Center for Gas Turbine Project
源URL  
专题金属研究所_中国科学院金属研究所
通讯作者Li, Wei; Jiang, Sumeng; Sun, Chao
作者单位1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Li, Tong,Li, Wei,Zhang, Wenlu,et al. Effects of YSZ deposition process on reactive elements distribution and cyclic oxidation behaviors of a thermal barrier coating system[J]. CERAMICS INTERNATIONAL,2024,50(6):9323-9331.
APA Li, Tong.,Li, Wei.,Zhang, Wenlu.,Fan, Lianjun.,Zhang, Shiyi.,...&Sun, Chao.(2024).Effects of YSZ deposition process on reactive elements distribution and cyclic oxidation behaviors of a thermal barrier coating system.CERAMICS INTERNATIONAL,50(6),9323-9331.
MLA Li, Tong,et al."Effects of YSZ deposition process on reactive elements distribution and cyclic oxidation behaviors of a thermal barrier coating system".CERAMICS INTERNATIONAL 50.6(2024):9323-9331.

入库方式： OAI收割

来源：金属研究所

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