Effect of Re-base diffusion barrier on the oxidation performance of a gradient NiCoCrAlY coating
文献类型：期刊论文
| 作者 | Dong, S. Z.1; Li, Y. K.1,2; Xu, M. M.2; Li, S.2; Dong, Z. H.2; Bao, Z. B.2; Zhu, S. L.2; Wang, F. H.3 |
| 刊名 | SURFACE & COATINGS TECHNOLOGY
 |
| 出版日期 | 2023-01-15 |
| 卷号 | 452页码:9 |
| ISSN号 | 0257-8972 |
| 关键词 | Re-base diffusion barrier Aluminide coating Oxidation Interdiffusion TCP phase |
| DOI | 10.1016/j.surfcoat.2022.129105 |
| 通讯作者 | Bao, Z. B.(zbbao@imr.ac.cn) |
| 英文摘要 | A gradient NiCoCrAlY coating with a Re-base diffusion barrier (RG-NiCoCrAlY) was prepared by sequential treatments of Ni-Re coelectrodeposition, arc ion plating and chemical vapor aluminization. For comparison, normal NiCoCrAlY and simply aluminized NiCoCrAlY coatings (G-NiCoCrAlY) were also prepared to assess their cyclic oxidation behavior at 1050 degrees C. The results indicated that the oxide scale formed on the normal NiCoCrAlY coating peeled off after 400 cycles, while the G-NiCoCrAlY and RG-NiCoCrAlY coatings developed and main-tained continuously dense alumina scale after oxidation for 600 cycles, confirming the benefits of increasing the Al content in NiCoCrAlY. In contrast to G-NiCoCrAlY, the presence of Re-base diffusion barrier mitigated element interdiffusion, which not only reserved Al in the coating but also reduced the outward diffusion of refractory elements from the substrate, thus was capable of minimizing precipitation of topologically close-packed phase (TCP) in single-crystal superalloy. Instead of outward diffusion, refractory elements were dissolved in the diffusion barrier and became fixed. Undoubtedly, the best anti-cycling performance was achieved by the RG-NiCoCrAlY coating. The mechanisms of the effect of the Re-base diffusion barrier on oxide scale growth and elemental interdiffusion, which influence the overall oxidation behavior of the NiCoCrAlY coating, are discussed. |
| 资助项目 | Key Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Science and Technology Major Project ; [ZDRW-CN-2021-2-2] ; [2018YFB2003601] ; [J2019 -IV -0006-0074] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000899508300003 |
| 资助机构 | Key Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Science and Technology Major Project |
| 源URL | [http://ir.imr.ac.cn/handle/321006/175780]  |
| 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.Liaoning Tech Univ, Sch Mat Sci & Engn, Zhonghua Rd 47, Fuxing 123000, 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.Northeastern Univ, Shenyang Natl Lab Mat Sci, Wenhua Rd 3, Shenyang 110819, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, S. Z.,Li, Y. K.,Xu, M. M.,et al. Effect of Re-base diffusion barrier on the oxidation performance of a gradient NiCoCrAlY coating[J]. SURFACE & COATINGS TECHNOLOGY,2023,452:9. |
| APA | Dong, S. Z..,Li, Y. K..,Xu, M. M..,Li, S..,Dong, Z. H..,...&Wang, F. H..(2023).Effect of Re-base diffusion barrier on the oxidation performance of a gradient NiCoCrAlY coating.SURFACE & COATINGS TECHNOLOGY,452,9. |
| MLA | Dong, S. Z.,et al."Effect of Re-base diffusion barrier on the oxidation performance of a gradient NiCoCrAlY coating".SURFACE & COATINGS TECHNOLOGY 452(2023):9. |
入库方式： OAI收割
来源：金属研究所
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