Comparative study of the reactive elements effects on oxidation behavior of a Ni-based superalloy
文献类型：期刊论文
| 作者 | Rehman, Khalil1,2; Sheng, Naicheng1; Sang, Zhiru1; Xun, Shuling1; Wang, Zhenjiang1; Xie, Jun1; Hou, Guichen1; Zhou, Yizhou1; Sun, Xiaofeng1 |
| 刊名 | VACUUM
 |
| 出版日期 | 2021-09-01 |
| 卷号 | 191页码:14 |
| 关键词 | Superalloys High temperature oxidation Reactive elements Microstructure Scale adhesion |
| ISSN号 | 0042-207X |
| DOI | 10.1016/j.vacuum.2021.110382 |
| 通讯作者 | Sheng, Naicheng(ncsheng@imr.ac.cn) |
| 英文摘要 | Hf, Y, and Ce (0.1 wt % each) were added in Ni-based superalloy, prepared by vacuum induction melting (VIM), and their effects on oxidation behavior were investigated after 300 h, over the temperature range 900-1100 degrees C. The surface of the oxide layer predominantly consisted of Al2O3 and NiO at 900 degrees C. At 1000 degrees C, most of the surface is covered by Al2O3 along with a small amount of NiAl2O4. However, at 1100 degrees C, the oxide layer's surface mainly formed of NiAl2O4 with plate-like alpha-Al2O3. It has been found that Hf produced excellent oxidation resistance and improved the scale adhesion to the alloy surface. On the other hand, Ce has a limited effect at high temperatures, and the scale adhesion is decreased with increasing oxidation time. From the analysis of oxidation kinetics and microstructure, it has been proposed that the dynamic segregation of reactive elements does not physically leads to the blocking of ions outward diffusion through Al2O3. The improvement in oxidation resistance of alumina forming alloys produced by reactive elements is explained based on ionic radii, chemical reactivity with alloying elements, and alteration in the alumina grain boundary's electronic properties. |
| 资助项目 | Chinese Academy of Sciences, National Natural Science Foundation of China[51701210] ; Chinese Academy of Sciences, National Natural Science Foundation of China[51771191] ; Chinese Academy of Sciences, National Natural Science Foundation of China[51971214] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000681241400003 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Chinese Academy of Sciences, National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/159553]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sheng, Naicheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 96 Jinzhai Rd, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rehman, Khalil,Sheng, Naicheng,Sang, Zhiru,et al. Comparative study of the reactive elements effects on oxidation behavior of a Ni-based superalloy[J]. VACUUM,2021,191:14. |
| APA | Rehman, Khalil.,Sheng, Naicheng.,Sang, Zhiru.,Xun, Shuling.,Wang, Zhenjiang.,...&Sun, Xiaofeng.(2021).Comparative study of the reactive elements effects on oxidation behavior of a Ni-based superalloy.VACUUM,191,14. |
| MLA | Rehman, Khalil,et al."Comparative study of the reactive elements effects on oxidation behavior of a Ni-based superalloy".VACUUM 191(2021):14. |
入库方式： OAI收割
来源：金属研究所
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