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

CORC > 金属研究所 > 中国科学院金属研究所

	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 1,4; Qi, Lu 1,4; He, Suyun 1,4; Qi, Yang 2; Ye, Hengqiang 1,2; Zhang, Jian 3; Du, Kui 1
刊名	SCRIPTA MATERIALIA
	2019-07-01
卷号	167 页码:71-75
关键词	Superalloy Interfaces Grooves Creep Aging
ISSN号	1359-6462
DOI	10.1016/j.scriptamat.2019.04.001
通讯作者	Du, Kui(kuidu@imr.ac.cn)
英文摘要	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.
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
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000468720000015
资助机构	National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/133560]
专题	金属研究所_中国科学院金属研究所
通讯作者	Du, Kui
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, 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.