Enhancement of creep properties with trace nitrogen in a low-cost nickel-based single crystal superalloy
文献类型：期刊论文
| 作者 | Zhang, G. Q.1,2; Wang, L.1; Pang, Y. Y.1; Meng, J.1; Zhou, Y. Z.1; Sun, X. F.1 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 918页码:13 |
| 关键词 | Nitrogen content Nitride Single-crystal superalloy Creep property Micropore |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2024.147420 |
| 通讯作者 | Meng, J.(jmeng@imr.ac.cn) ; Zhou, Y. Z.(yzzhou@imr.ac.cn) |
| 英文摘要 | Nitrogen (N) is an unavoidable element in single-crystal superalloys that combines with other elements to form nitrides. Large-size nitrides often become the sites of crack initiation and propagation, which adversely affect the microstructures and mechanical properties of superalloys. However, in this study, it was found that the addition of trace amounts of N could improve the creep properties of superalloys. The results indicated that the size and number of nitrides gradually increased as the N contents increased from 3 ppm to 25 ppm. In addition, the porosity first decreased and then increased. The cause of the increase and subsequent decrease in creep lives as N contents increased was the lattice expansion caused by the formation of nitrides, which reduced the porosity by compensating for volume contraction. Meanwhile, the small-size nitrides could impede dislocation movement, which benefited the creep life of the specimens, resulting in the best creep life of the specimens containing 12 ppm of N. |
| 资助项目 | National Key R & D Program of China[2019YFA0705300] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001345790600001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Key R & D Program of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Meng, J.; Zhou, Y. Z. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, G. Q.,Wang, L.,Pang, Y. Y.,et al. Enhancement of creep properties with trace nitrogen in a low-cost nickel-based single crystal superalloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,918:13. |
| APA | Zhang, G. Q.,Wang, L.,Pang, Y. Y.,Meng, J.,Zhou, Y. Z.,&Sun, X. F..(2024).Enhancement of creep properties with trace nitrogen in a low-cost nickel-based single crystal superalloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,918,13. |
| MLA | Zhang, G. Q.,et al."Enhancement of creep properties with trace nitrogen in a low-cost nickel-based single crystal superalloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 918(2024):13. |
入库方式： OAI收割
来源：金属研究所
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