Facilitating effect of interfacial grooves on the rafting of nickel-based single crystal superalloy at high temperature

doi:10.1016/j.scriptamat.2019.04.001

IMR OpenIR

	Facilitating effect of interfacial grooves on the rafting of nickel-based single crystal superalloy at high temperature
	Qi, Dongqing 1,2; Wang, Li 3; Zhao, Peng 2,4; Qi, Lu 2,4; He, Suyun 2,4; Qi, Yang 1; Ye, Hengqiang 1,2; Zhang, Jian 3; Du, Kui 2
通讯作者	Du, Kui(kuidu@imr.ac.cn)
	2019-07-01
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	167 页码:71-75
摘要	Interfacial grooving induced by dislocation stress takes place at gamma/gamma' interfaces during creep and aging of a third-generation nickel-based single crystal superalloy at 1120 degrees C. At the tip of grooves, gamma' phase is directly measured under compressive stress of interfacial dislocations, which likely drives the gamma'-forming elements out. The enrichment of Re and Co elements are detected in the tip. Meanwhile, gamma' precipitates coarsen much faster when more grooves form at the interfaces along the coarsening direction. This suggests that interfacial grooves facilitate the rafting of gamma' precipitates, especially under the creep stress. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	Superalloy Interfaces Grooves Creep Aging
资助者	National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences
DOI	10.1016/j.scriptamat.2019.04.001
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51771203] ; National Natural Science Foundation of China[51871210] ; National Natural Science Foundation of China[51671196] ; National Natural Science Foundation of China[51390473] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-JSC024]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000468720000015
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：28[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/133561
专题	中国科学院金属研究所
通讯作者	Du, Kui
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Qi, Dongqing,Wang, Li,Zhao, Peng,et al. Facilitating effect of interfacial grooves on the rafting of nickel-based single crystal superalloy at high temperature[J]. SCRIPTA MATERIALIA,2019,167:71-75.
APA	Qi, Dongqing.,Wang, Li.,Zhao, Peng.,Qi, Lu.,He, Suyun.,...&Du, Kui.(2019).Facilitating effect of interfacial grooves on the rafting of nickel-based single crystal superalloy at high temperature.SCRIPTA MATERIALIA,167,71-75.
MLA	Qi, Dongqing,et al."Facilitating effect of interfacial grooves on the rafting of nickel-based single crystal superalloy at high temperature".SCRIPTA MATERIALIA 167(2019):71-75.