IMR OpenIR
Multi-scale simulation of single crystal hollow turbine blade manufactured by liquid metal cooling process
Alternative TitleMulti-scale simulation of single crystal hollow turbine blade manufactured by liquid metal cooling process
Yan Xuewei1; Zhang Hang2; Tang Ning3; Sun Changbo4; Xu Qingyan1; Liu Baicheng1
2018
Source PublicationProgress in Natural Science: Materials International
ISSN1002-0071
Volume28Issue:1Pages:78-84
AbstractLiquid metal cooling (LMC) process as a powerful directional solidification (DS) technique is prospectively used to manufacture single crystal (SC) turbine blades. An understanding of the temperature distribution and microstructure evolution in LMC process is required in order to improve the properties of the blades. For this reason, a multi-scale model coupling with the temperature field, grain growth and solute diffusion was established. The temperature distribution and mushy zone evolution of the hollow blade was simulated and discussed. According to the simulation results, the mushy zone might be convex and ahead of the ceramic beads at a lower withdrawal rate, while it will be concave and laggard at a higher withdrawal rate, and a uniform and horizontal mushy zone will be formed at a medium withdrawal rate. Grain growth of the blade at different withdrawal rates was also investigated. Single crystal structures were all selected out at three different withdrawal rates. Moreover, mis-orientation of the grains at 8?mm/min reached ~30°, while it was ~5° and ~15° at 10?mm/min and 12?mm/min, respectively. The model for predicting dendritic morphology was verified by corresponding experiment. Large scale for 2D dendritic distribution in the whole sections was investigated by experiment and simulation, and they presented a well agreement with each other.
Other AbstractLiquid metal cooling (LMC) process as a powerful directional solidification (DS) technique is prospectively used to manufacture single crystal (SC) turbine blades. An understanding of the temperature distribution and microstructure evolution in LMC process is required in order to improve the properties of the blades. For this reason, a multi-scale model coupling with the temperature field, grain growth and solute diffusion was established. The temperature distribution and mushy zone evolution of the hollow blade was simulated and discussed. According to the simulation results, the mushy zone might be convex and ahead of the ceramic beads at a lower withdrawal rate, while it will be concave and laggard at a higher withdrawal rate, and a uniform and horizontal mushy zone will be formed at a medium withdrawal rate. Grain growth of the blade at different withdrawal rates was also investigated. Single crystal structures were all selected out at three different withdrawal rates. Moreover, mis-orientation of the grains at 8 mm/min reached ~30°, while it was ~5° and ~15° at 10mm/min and 12 mm/min, respectively. The model for predicting dendritic morphology was verified by corresponding experiment. Large scale for 2D dendritic distribution in the whole sections was investigated by experiment and simulation, and they presented a well agreement with each other.
KeywordHollow blade Single crystal Multi-scale simulation Liquid metal cooling
Indexed ByCSCD
Language英语
CSCD IDCSCD:6218829
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/141953
Collection中国科学院金属研究所
Affiliation1.清华大学
2.School of Mechanical Engineering, Xi'an Jiao Tong University
3.SUVAST Special Alloy Technology Co., LTD
4.中国科学院金属研究所
Recommended Citation
GB/T 7714
Yan Xuewei,Zhang Hang,Tang Ning,et al. Multi-scale simulation of single crystal hollow turbine blade manufactured by liquid metal cooling process[J]. Progress in Natural Science: Materials International,2018,28(1):78-84.
APA Yan Xuewei,Zhang Hang,Tang Ning,Sun Changbo,Xu Qingyan,&Liu Baicheng.(2018).Multi-scale simulation of single crystal hollow turbine blade manufactured by liquid metal cooling process.Progress in Natural Science: Materials International,28(1),78-84.
MLA Yan Xuewei,et al."Multi-scale simulation of single crystal hollow turbine blade manufactured by liquid metal cooling process".Progress in Natural Science: Materials International 28.1(2018):78-84.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yan Xuewei]'s Articles
[Zhang Hang]'s Articles
[Tang Ning]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yan Xuewei]'s Articles
[Zhang Hang]'s Articles
[Tang Ning]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yan Xuewei]'s Articles
[Zhang Hang]'s Articles
[Tang Ning]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.