Duration-affected creep behaviors of Ni-based single crystal superalloys with/without rhenium addition designed for IGT application
文献类型：期刊论文
| 作者 | Lu, Fan3; Lu, Song3; Antonov, Stoichko2,3; Li, Longfei3; He, Siliang3; Hou, Muchun3; Wang, Dong1; Zhang, Jian1; Feng, Qiang3 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2023-02-07 |
| 卷号 | 864页码:13 |
| 关键词 | Ni-based single crystal superalloys Duration effect Microstructural evolution Deformation mechanism Re effect |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2022.144560 |
| 通讯作者 | Li, Longfei(lilf@skl.ustb.edu.cn) ; Feng, Qiang(qfeng@skl.ustb.edu.cn) |
| 英文摘要 | In this study, the creep behaviors of two Ni-based single crystal superalloys with/without Re addition designed for industrial gas turbine application were investigated at 900 degrees C under a range of applied stresses (200 MPa-330 MPa), and the examinations of the microstructures and dislocation configurations were performed at the minimum creep rate and creep rupture under each condition of both alloys. The results indicated that although the creep lives spanned over thousands of hours under different stresses, dislocations underwent the similar mechanisms including the proliferation and movements by gliding-climbing process in decelerating stage, followed by the progressive increase in dislocations shearing into the gamma ' phases until creep rupture in each alloy. This led to a special rafting regime which was characterized by the sluggish formation of the rafting structure in the present superalloy, considering the relatively lower gamma ' volume fraction, lower lattice misfit, and lower elemental diffusion of the experimental superalloys than those of traditional Ni-based superalloys. Thus, the "duration effect" was proposed to describe the strong correlation between the creep duration and microstructural evolution, which showed insensitivity to the applied stress and accumulation strain, resulting in the consistently exponential relationships between the time to the minimum creep rate and the applied stress or creep life of each alloy within a wide range of stresses. The addition of Re gave rise to an inversion of the rafting tendency during high-temperature creep without changing the deformation mechanism under different stresses. Nevertheless, the addition of Re could still enhance the creep property under each stress, which contributes to provide insights for optimizing the alloying design and enhancing long-term reliable service of industrial gas turbine blades. |
| 资助项目 | National Science and Technology Major Project[J2019 -VI-0010 -0124] ; National Natural Science Foundation of China[51631008] ; National Natural Science Foundation of China[91860201] ; Alexander von Humboldt Foundation |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000976853400001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Science and Technology Major Project ; National Natural Science Foundation of China ; Alexander von Humboldt Foundation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177442]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Longfei; Feng, Qiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China 2.Max Planck Inst Eisenforschung GmbH, Dept Microstruct Phys & Alloy Design, D-40237 Dusseldorf, Germany 3.Univ Sci & Technol Beijing, Beijing Adv Innovat Ctr Mat Genome Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Fan,Lu, Song,Antonov, Stoichko,et al. Duration-affected creep behaviors of Ni-based single crystal superalloys with/without rhenium addition designed for IGT application[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2023,864:13. |
| APA | Lu, Fan.,Lu, Song.,Antonov, Stoichko.,Li, Longfei.,He, Siliang.,...&Feng, Qiang.(2023).Duration-affected creep behaviors of Ni-based single crystal superalloys with/without rhenium addition designed for IGT application.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,864,13. |
| MLA | Lu, Fan,et al."Duration-affected creep behaviors of Ni-based single crystal superalloys with/without rhenium addition designed for IGT application".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 864(2023):13. |
入库方式： OAI收割
来源：金属研究所
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