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

文献类型：期刊论文

作者Qi, Dongqing2,3; Wang, Li1; Zhao, Peng3,4; Qi, Lu3,4; He, Suyun3,4; Qi, Yang2; Ye, Hengqiang2,3; Zhang, Jian1; Du, Kui3
刊名SCRIPTA MATERIALIA
出版日期2019-07-01
卷号167页码:71-75
关键词Superalloy Interfaces Grooves Creep Aging
ISSN号1359-6462
DOI10.1016/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
WOS记录号WOS:000468720000015
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences
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, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China
2.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China
3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 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.

入库方式： OAI收割

来源：金属研究所

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