Freckle Formation Tendency of a Single-Crystal Nickel-based Superalloy with Minor Carbon Additions
文献类型：期刊论文
| 作者 | Jiang, Weiguo1,2; Dong, Lin1,2; Li, Kaiwen3 |
| 刊名 | JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
 |
| 出版日期 | 2024-12-17 |
| 页码 | 11 |
| 关键词 | carbon content directional solidification freckle tendency single-crystal superalloy |
| ISSN号 | 1059-9495 |
| DOI | 10.1007/s11665-024-10554-y |
| 通讯作者 | Jiang, Weiguo(jwg@wfust.edu.cn) |
| 英文摘要 | The freckle formation tendencies of single-crystal superalloys with minor amounts of carbon were investigated. Carbon addition resulted in TaC-type carbide (MC) precipitation earlier than the eutectic phase in the interdendritic region, which induced Ta depletion and resulted in increases in the W and Re contents in the eutectic. The weakened density imbalance between the interdendritic region liquid in the mushy zone and the melted bulk liquid prohibits convection flow. Additionally, as the amount of carbon intentionally added to the superalloy increases, the volume fraction of the eutectic in the superalloy decreases, and the MC changes from a blocky to script-like shape in the interdendritic region. A lower volume fraction of the eutectic phase and the script-like carbide network can depress thermosolutal convection in the interdendritic region in the longitudinal direction. For these reasons, the freckle formation tendency decreased. As the carbon content of superalloys increases, the Rayleigh number decreases, resulting in a decrease in freckle formation. The Rayleigh criterion can be used to evaluate freckle formation tendency. |
| 资助项目 | Natural Science Foundation of Shandong Province, China[ZR2022ME066] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001379455400001 |
| 出版者 | SPRINGER |
| 资助机构 | Natural Science Foundation of Shandong Province, China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jiang, Weiguo |
| 作者单位 | 1.Weifang Univ Sci & Technol, Shouguang 262700, Shandong, Peoples R China 2.Weifang Key Lab High Temp Mat & Single Crystal Com, Shouguang 262700, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Weiguo,Dong, Lin,Li, Kaiwen. Freckle Formation Tendency of a Single-Crystal Nickel-based Superalloy with Minor Carbon Additions[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2024:11. |
| APA | Jiang, Weiguo,Dong, Lin,&Li, Kaiwen.(2024).Freckle Formation Tendency of a Single-Crystal Nickel-based Superalloy with Minor Carbon Additions.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,11. |
| MLA | Jiang, Weiguo,et al."Freckle Formation Tendency of a Single-Crystal Nickel-based Superalloy with Minor Carbon Additions".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2024):11. |
入库方式： OAI收割
来源：金属研究所
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