| Effects of Ru Addition on the Microstructures of the Ni-Based Single Crystal Superalloys | |
| Du Yunling1,2; Niu Jianping2; Wang Xinguang1; Liu Jinlai1; Liu Jide1; Zhou Yizhou1; Jin Tao1; Sun Xiaofeng1 | |
| Corresponding Author | Du Yunling(18640467381@126.com) |
| 2018-04-01 | |
| Source Publication | RARE METAL MATERIALS AND ENGINEERING
 |
| ISSN | 1002-185X |
| Volume | 47Issue:4Pages:1248-1253 |
| Abstract | The effects of ruthenium (Ru) addition on the microstructures of Ni-based single crystal superalloys as-cast, post-heat treated and long term aged (at 1100 degrees C) were investigated by optical microscope (OM), scanning electron microscope (SEM) and transmission electron microscope (TEM). The results show that Ru addition increases the content of eutectic and reduces primary dendritic arm spacing. The solution heat treatment of the 3Ru alloy is more difficult. The stacking fault energy of the gamma matrix obviously decreases after Ru addition, and the extended dislocations in the gamma matrix may impede the movement of the following dislocations during plastic deformation and improve the mechanical properties significantly. During long term aging at 1100 degrees C, Ru addition has no significant effects on the rafting process, and does not change the main type of topologically close-packed (TCP) phase. However, the precipitation process of TCP phase is suppressed after Ru addition. As the aging time is prolonged, the suppression effect of Ru addition is weakened (over 500 h). |
| Keyword | Ru long term aging TCP phase Ni-based single crystal superalloys |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000431601500039 |
| Publisher | NORTHWEST INST NONFERROUS METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/127993 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Du Yunling |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Shenyang Univ, Shenyang 110044, Peoples R China |
| Recommended Citation GB/T 7714 | Du Yunling,Niu Jianping,Wang Xinguang,et al. Effects of Ru Addition on the Microstructures of the Ni-Based Single Crystal Superalloys[J]. RARE METAL MATERIALS AND ENGINEERING,2018,47(4):1248-1253. |
| APA | Du Yunling.,Niu Jianping.,Wang Xinguang.,Liu Jinlai.,Liu Jide.,...&Sun Xiaofeng.(2018).Effects of Ru Addition on the Microstructures of the Ni-Based Single Crystal Superalloys.RARE METAL MATERIALS AND ENGINEERING,47(4),1248-1253. |
| MLA | Du Yunling,et al."Effects of Ru Addition on the Microstructures of the Ni-Based Single Crystal Superalloys".RARE METAL MATERIALS AND ENGINEERING 47.4(2018):1248-1253. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment