Surface corrosion behavior of (3-(Ni,Pt)Al coating: α-Al2O3 decohesion-induced failure mechanism
文献类型：期刊论文
| 作者 | Jiang, Yiming1,2; Li, Shuai2; Huang, Di1,2; Bao, Zebin1,2; Wang, Jiemin1,3; Zhu, Shenglong1,2; Wang, Fuhui4 |
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2024-10-01 |
| 卷号 | 669页码:12 |
| 关键词 | Pt-modified aluminide coating alpha-Al 2 O 3 decohesion Impurity segregation Embrittlement First-principles calculations |
| ISSN号 | 0169-4332 |
| DOI | 10.1016/j.apsusc.2024.160548 |
| 通讯作者 | Bao, Zebin(zbbao@imr.ac.cn) ; Wang, Jiemin(jieminwang@imr.ac.cn) |
| 英文摘要 | In marine and gas turbine environments, impurities like hydrogen (H), sulfur (S) and chlorine (Cl) ions frequently impact continuity and integrity of the oxide scale of Pt-modified aluminide coating. This study systematically investigated the segregation behavior of these impurities using first-principles calculations, to reveal their weakening potency on both alpha-Al2O3 bulk and grain boundary (GB). The energetic properties, including separation work, surface energy and GB energy, are strongly associated with existing form of impurities. The interstitial S and Cl atoms are particularly intensive in reducing cohesion of alpha-Al2O3 in comparison with solute state. The single-atom S- and Cl-doping with S and Cl have similar effects on the embrittlement of alpha-Al2O3 bulk/ GB, and the Cl-introduction exhibits extreme brittleness once the atomic concentration increases. Interestingly, single H-addition has no significant effect on the alpha-Al2O3 decohesion, while its weakening potency on alpha-Al2O3 is further enhanced upon contacting with S and Cl atoms. Therefore, we decomposed strengthening energy into mechanical contribution and chemical contribution, finding that the incorporation of H increases the chemical contribution to decohesion of alpha-Al2O3. This work, along with initial corrosion behavior of various (Ni,Pt)Al coatings, aims to deepen understanding of H, S and Cl on alpha-Al2O3 decohesion from multiple perspectives. |
| 资助项目 | National Natural Science Foundation of China[51671202] ; National Natural Science Foundation of China[52301116] ; Fundamental Science Center for Aviation and Gas Turbine Engines[P2021-A-IV-002-001] ; National Science and Technology Major Project[J2019-IV-0006-0074] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-2-2] |
| WOS研究方向 | Chemistry ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001339195600001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Science Center for Aviation and Gas Turbine Engines ; National Science and Technology Major Project ; Key Research Program of the Chinese Academy of Sciences |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Bao, Zebin; Wang, Jiemin |
| 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, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Wencui Rd 62, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China 4.Northeastern Univ, Shenyang Natl Lab Mat Sci, Wenhua Rd 3, Shenyang 110819, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Yiming,Li, Shuai,Huang, Di,et al. Surface corrosion behavior of (3-(Ni,Pt)Al coating: α-Al2O3 decohesion-induced failure mechanism[J]. APPLIED SURFACE SCIENCE,2024,669:12. |
| APA | Jiang, Yiming.,Li, Shuai.,Huang, Di.,Bao, Zebin.,Wang, Jiemin.,...&Wang, Fuhui.(2024).Surface corrosion behavior of (3-(Ni,Pt)Al coating: α-Al2O3 decohesion-induced failure mechanism.APPLIED SURFACE SCIENCE,669,12. |
| MLA | Jiang, Yiming,et al."Surface corrosion behavior of (3-(Ni,Pt)Al coating: α-Al2O3 decohesion-induced failure mechanism".APPLIED SURFACE SCIENCE 669(2024):12. |
入库方式： OAI收割
来源：金属研究所
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