Effect of C Content on the Microstructure and Stress Rupture Properties of Nickel-Based Superalloy K4750
文献类型：期刊论文
| 作者 | Li, Xiaoxiao1,2,3; Ou, Meiqiong2; Yu, Xun2; Hao, Xianchao2; Ma, Yingche2 |
| 刊名 | JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
 |
| 出版日期 | 2022-11-11 |
| 页码 | 15 |
| ISSN号 | 1059-9495 |
| 关键词 | carbides carbon nickel-based superalloy stress rupture properties |
| DOI | 10.1007/s11665-022-07628-0 |
| 通讯作者 | Ma, Yingche(ycma@imr.ac.cn) |
| 英文摘要 | The effect of C content on the microstructure and stress rupture properties of nickel-based superalloy K4750 was studied by SEM, EBSD, TEM, EPMA and stress rupture tests. With the increase in C content, the size and quantity of MC and M23C6 carbides in experimental alloys increased, and the morphology of MC carbides changed from small blocky or rod to large blocky or skeleton. The inhibition of MC carbides on grain boundary migration made the grain size of as-cast alloys inversely proportional to C content. As C content went from 0.07 to 0.10 wt.% and then to 0.12 wt.%, the stress rupture life of K4750 alloy at 750 degrees C/430 MPa increased from 160.7 to 222.0 h, and then decreased to 184.4 h, and the elongation increased from 5.1 to 11.5% and then decreased to 9.8%. The difference of stress rupture properties of K4750 alloys could be attributed to the influence of varied C content on carbides precipitation characteristics. The moderate increase in MC and M23C6 carbides could effectively pin grain boundaries and reduced the tendency of forming micro-voids and micro-cracks, which was beneficial to stress properties of K4750 alloy. On the contrary, when the size and quantity of carbides increased excessively, they could become potential crack sources in the process of stress rupture tests. |
| 资助项目 | National Major Science and Technology Projects of China[J2019-VI-0004-0118] ; National Major Science and Technology Projects of China[J2019-VII-0002-0142] ; National Natural Science Foundation of China[52001314] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000881903900002 |
| 资助机构 | National Major Science and Technology Projects of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/176720]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ma, Yingche |
| 作者单位 | 1.Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Changzhou Univ, Jiangsu Key Lab Mat Surface Sci & Technol, Changzhou 213164, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiaoxiao,Ou, Meiqiong,Yu, Xun,et al. Effect of C Content on the Microstructure and Stress Rupture Properties of Nickel-Based Superalloy K4750[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2022:15. |
| APA | Li, Xiaoxiao,Ou, Meiqiong,Yu, Xun,Hao, Xianchao,&Ma, Yingche.(2022).Effect of C Content on the Microstructure and Stress Rupture Properties of Nickel-Based Superalloy K4750.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,15. |
| MLA | Li, Xiaoxiao,et al."Effect of C Content on the Microstructure and Stress Rupture Properties of Nickel-Based Superalloy K4750".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2022):15. |
入库方式： OAI收割
来源：金属研究所
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