Influence of Small Degree Deviation from [001] Orientation on Creep Behavior of Ni-based Single Crystal Superalloys

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	Influence of Small Degree Deviation from [001] Orientation on Creep Behavior of Ni-based Single Crystal Superalloys
	Du Yunling 1,2; Tan Zihao 1; Yang Yanhong 1; Chen Chao 1,2; Wang Xinguang 1; Zhou Yizhou 1; Sun Xiaofeng 1
刊名	RARE METAL MATERIALS AND ENGINEERING
	2021-04-01
卷号	50 期号:4 页码:1132-1138
关键词	single crystal superalloy misorientation creep behavior
ISSN号	1002-185X
通讯作者	Yang Yanhong(yhyang@imr.ac.cn)
英文摘要	The creep behavior of Ni-based single crystal superalloys with small degree deviation from [001] orientation is strongly influenced by temperature, gamma' phase size and the level of applied stress. This research presented a review on effects of small orientation deviation on creep behavior of single crystal superalloys. The variations in the creep properties of alloys with small degree deviation from [001] orientation originate from different deformation mechanisms. Besides, these mechanisms correspond to different threshold stresses which are associated with the occurrence of primary creep and creep rate. At intermediate temperatures (760 similar to 850 degrees C), the creep behavior of single crystal alloys is highly sensitive to small misorientation but relatively insensitive above 850 degrees C. The size of y phase is inferred to exert influence on the creep behavior of alloys with orientation deviation at intermediate temperatures. However, at elevated temperatures, the rafting process can be accelerated by higher thermal activation, and thus the mechanical properties become less relevant to the size of gamma' precipitates.
资助项目	National Science and Technology Major Project[2017-VI-0003-0073] ; National Key R&D Program of China[2017YFA0700704] ; National Natural Science Foundation of China[51701210] ; National Natural Science Foundation of China[51601192] ; National Natural Science Foundation of China[51671188] ; Youth Innovation Promotion Association, Chinese Academy of Sciences
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000651535100004
资助机构	National Science and Technology Major Project ; National Key R&D Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/161020]
专题	金属研究所_中国科学院金属研究所
通讯作者	Yang Yanhong
作者单位	1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Du Yunling,Tan Zihao,Yang Yanhong,et al. Influence of Small Degree Deviation from [001] Orientation on Creep Behavior of Ni-based Single Crystal Superalloys[J]. RARE METAL MATERIALS AND ENGINEERING,2021,50(4):1132-1138.
APA	Du Yunling.,Tan Zihao.,Yang Yanhong.,Chen Chao.,Wang Xinguang.,...&Sun Xiaofeng.(2021).Influence of Small Degree Deviation from [001] Orientation on Creep Behavior of Ni-based Single Crystal Superalloys.RARE METAL MATERIALS AND ENGINEERING,50(4),1132-1138.
MLA	Du Yunling,et al."Influence of Small Degree Deviation from [001] Orientation on Creep Behavior of Ni-based Single Crystal Superalloys".RARE METAL MATERIALS AND ENGINEERING 50.4(2021):1132-1138.