Effects of cerium addition on the microstructure and stress rupture properties of a new nickel-based cast superalloy
文献类型：期刊论文
| 作者 | Rong, Lirong1,2; Wang, Min2,3; Xing, Weiwei2,3; Hao, Xianchao2,3; Ma, Yingche2,3 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 159页码:112-124 |
| 关键词 | Nickel -based cast superalloy Cerium M C carbide Stress rupture properties |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2023.01.060 |
| 通讯作者 | Xing, Weiwei(wwxing@imr.ac.cn) ; Ma, Yingche(ycma@imr.ac.cn) |
| 英文摘要 | The microstructure and stress rupture properties of a new nickel-based cast superalloy were investigated with the cerium (Ce) additions of 0, 19, 50, 96, 150, and 300 ppm, respectively. The results indicated that Ce was mainly found in MC and M23C6 carbides, and it was also found to exist in the form of cerium -rich phases or inclusions. According to the microstructure evidence, Ce promoted the formation of MC carbides and aggravated the inhomogeneity of M23C6 carbides along grain boundaries. It was also identi-fied that the average sizes of primary and secondary gamma' phases all decreased with the rising Ce content. The acceleration of Ti, Nb, and C segregations during solidification was attributed to the influence of cerium on the variation of carbides along grain boundaries. The stress rupture life experienced a signifi-cant drop as the Ce content increased from 19 to 300 ppm. Explorations showed that the degradation was mainly attributed to the severe degradation of MC carbides and the easily forming micro-voids around them caused by the Ce addition. In addition to that, the increments in the inhomogeneous distribution of M23C6 carbides at grain boundaries and the accelerated coarsening rate of gamma' phases both induced the fracture under complex stress conditions.(c) 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | National Science and Technology Major Project of China[J2019 -VI -0 0 04-0118] ; China Postdoctoral Science Foundation[2020M671403] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000987108900001 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 资助机构 | National Science and Technology Major Project of China ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177665]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xing, Weiwei; Ma, Yingche |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rong, Lirong,Wang, Min,Xing, Weiwei,et al. Effects of cerium addition on the microstructure and stress rupture properties of a new nickel-based cast superalloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,159:112-124. |
| APA | Rong, Lirong,Wang, Min,Xing, Weiwei,Hao, Xianchao,&Ma, Yingche.(2023).Effects of cerium addition on the microstructure and stress rupture properties of a new nickel-based cast superalloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,159,112-124. |
| MLA | Rong, Lirong,et al."Effects of cerium addition on the microstructure and stress rupture properties of a new nickel-based cast superalloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 159(2023):112-124. |
入库方式： OAI收割
来源：金属研究所
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