Effect of withdrawal rate on the microstructure and static recrystallization behavior of Ni-based single crystal superalloy

doi:10.1016/j.jmrt.2024.11.135

IMR OpenIR

	Effect of withdrawal rate on the microstructure and static recrystallization behavior of Ni-based single crystal superalloy
	Xu, F. Z.1,3; Xiong, W.4; Lin, Y. C.1; Ma, D. X.2,3; Cheng, B. W.3; Xie, G.5; He, D. G.1; Zhao, Y. X.2,3; Li, L.3; Deng, Y. P.3
通讯作者	Xiong, W.(xw19841227@163.com) ; Lin, Y. C.(yclin@csu.edu.cn)
	2024-11-01
发表期刊	JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
ISSN	2238-7854
卷号	33 页码:8252-8264
摘要	The deformation characteristics after directional solidification at different withdrawal rates and static recrystallization (SRX) during solution heat treatment of Ni-based single-crystal superalloy castings were systematically investigated. The primary dendrite arm spacing was slightly affected by changes in the withdrawal rate, whereas the size of the gamma ' precipitates in the dendrite and interdendritic regions was considerably influenced by the withdrawal rate. Additionally, a stress-simulation analysis based on thermoelastic plasticity suggested a slight decrease in the size of the deformation zone and maximum equivalent plastic strain with an increase in the withdrawal rate. Conversely, the SRX area notably increased with higher withdrawal rates. Such abnormal SRX phenomenon was attributed to the significantly different dislocation densities caused by the different responses of the gamma ' sizes to deformation. Moreover, the dislocation density was directly related to the gamma ' surface area per unit volume. The morphological changes of gamma ' precipitates in the deformation zone were ascribed to the combined effect of compressive stress-induced P-type rafting and elastic anisotropy-induced octodendritic growth caused by lattice mismatch. Finally, other potential factors contributing to this abnormal SRX phenomenon were discussed.
关键词	Single-crystal superalloys Recrystallization Directional solidification Withdrawal rate Microstructure
资助者	National Natural Science Foundation Council of China ; National Key Research and Development Plan ; Postgraduate research and innovation projects of Central South University ; Guangdong Innovative and Entrepreneurial Research Team Program ; National Natural Science Foundation of China ; Science Center for Gas Turbine Project
DOI	10.1016/j.jmrt.2024.11.135
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation Council of China[91860103] ; National Natural Science Foundation Council of China[92060104] ; National Key Research and Development Plan[2021YFA1600603] ; Postgraduate research and innovation projects of Central South University[1053320184004] ; Guangdong Innovative and Entrepreneurial Research Team Program[607264877417] ; National Natural Science Foundation of China[52271042] ; Science Center for Gas Turbine Project[P2022-C-IV-001-001]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001363860200001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/191823
专题	中国科学院金属研究所
通讯作者	Xiong, W.; Lin, Y. C.
作者单位	1.Cent South Univ, Sch Mech & Elect Engn, Changsha 410083, Hunan, Peoples R China 2.Cent South Univ, Powder Met Res Inst, Changsha 410083, Hunan, Peoples R China 3.Shenzhen Wedge Cent South Res Inst Co Ltd, Shenzhen 518045, Guangdong, Peoples R China 4.Qing Hai Inst Technol, Engineer Sch, Xining 810000, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xu, F. Z.,Xiong, W.,Lin, Y. C.,et al. Effect of withdrawal rate on the microstructure and static recrystallization behavior of Ni-based single crystal superalloy[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,33:8252-8264.
APA	Xu, F. Z..,Xiong, W..,Lin, Y. C..,Ma, D. X..,Cheng, B. W..,...&Deng, Y. P..(2024).Effect of withdrawal rate on the microstructure and static recrystallization behavior of Ni-based single crystal superalloy.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,33,8252-8264.
MLA	Xu, F. Z.,et al."Effect of withdrawal rate on the microstructure and static recrystallization behavior of Ni-based single crystal superalloy".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 33(2024):8252-8264.