High temperature performance and interface evolution of a NiCoCrAlY coating with Pt modification and Re-based diffusion barrier
文献类型：期刊论文
| 作者 | Xu, M. M.1; Li, S.2; Dong, Z. H.1,2; Liu, H.2,3; Wang, J. M.4; Bao, Z. B.1,2; Zhu, S. L.1,2; Wange, F. H.5 |
| 刊名 | SURFACE & COATINGS TECHNOLOGY
 |
| 出版日期 | 2023-06-25 |
| 卷号 | 463页码:12 |
| 关键词 | Superalloy NiCoCrAlY coating Diffusion barrier Pt -modification Oxidation |
| ISSN号 | 0257-8972 |
| DOI | 10.1016/j.surfcoat.2023.129510 |
| 通讯作者 | Bao, Z. B.(zbbao@imr.ac.cn) |
| 英文摘要 | The cyclic and early isothermal oxidation behaviors at 1050 C of the NiCoCrAlY, Pt-modified NiCoCrAlY and Ptmodified NiCoCrAlY with Re-based diffusion barrier (DB) have been evaluated. The atomic immigration and electron location function (ELF) at the Ni-Re interface were simulated by density function theory (DFT) calculations. After isothermal oxidation for 1 h, island NiCoCrAlY particles with extremely poor Al were observed in the oxide scale of normal NiCoCrAlY coating, and then the oxide scale transformed into a double-layer structure after oxidation for 20 h. The initial "island-oxide" scale model was proposed to illustrate the oxidation mechanisms for normal NiCoCrAlY coating. The oxide scale of Pt-modified NiCoCrAlY coating was single-layer Al2O3 with rapid coverage at the surface, because the modification of Pt changed the initial oxidation mechanism by promoting the uphill diffusion of Al. The Re-based DB reduced the thickness of the secondary reaction zone (SRZ) by inhibiting the element interdiffusion between the NiCoCrAlY coating and the substrate, thus the Pt-modified NiCoCrAlY with Re-based DB exhibited the lowest interdiffusion extent. Interestingly, the thermal stability of Rebased DB in NiCoCrAlY coating system was poorer than that in NiCrAlY system. The DFT simulation shows that the incorporation of Co made the energy difference more negative, which confirmed that Co promoted the diffusion of Re in the NiCoCrAlY coating, thus accelerating the degradation of Re-based DB. |
| 资助项目 | National Natural Science Foundation of China[51671202] ; National Natural Science Foundation of China[52101090] ; National Science and Technology Major Project ; Graduate Innovation Research Project of the Institute of Metal Research ; Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; Key Research Program of the Chinese Academy of Sciences ; [J2019-IV-0006-0074] ; [1193002090] ; [2022M712200] ; [ZDRW-CN-2021-2-2] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000988760800001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; National Science and Technology Major Project ; Graduate Innovation Research Project of the Institute of Metal Research ; Chinese Academy of Sciences ; China Postdoctoral Science Foundation ; Key Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178000]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Bao, Z. B. |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Wenhua Rd 72, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Wencui Rd 62, Shenyang 110016, Peoples R China 3.Shenyang Ligong Univ, Sch Mat Sci & Engn, Shenyang 110159, Peoples R China 4.Chinese Acad Sci, Inst Met Res, High performance Ceram Div, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China 5.Northeastern Univ, Shenyang Natl Lab Mat Sci, Wenhua Rd 3, Shenyang 110819, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, M. M.,Li, S.,Dong, Z. H.,et al. High temperature performance and interface evolution of a NiCoCrAlY coating with Pt modification and Re-based diffusion barrier[J]. SURFACE & COATINGS TECHNOLOGY,2023,463:12. |
| APA | Xu, M. M..,Li, S..,Dong, Z. H..,Liu, H..,Wang, J. M..,...&Wange, F. H..(2023).High temperature performance and interface evolution of a NiCoCrAlY coating with Pt modification and Re-based diffusion barrier.SURFACE & COATINGS TECHNOLOGY,463,12. |
| MLA | Xu, M. M.,et al."High temperature performance and interface evolution of a NiCoCrAlY coating with Pt modification and Re-based diffusion barrier".SURFACE & COATINGS TECHNOLOGY 463(2023):12. |
入库方式： OAI收割
来源：金属研究所
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