Deformation mechanisms in a Co-rich nickel based superalloy with different size of gamma ' precipitates

IMR OpenIR

	Deformation mechanisms in a Co-rich nickel based superalloy with different size of gamma ' precipitates
	Fu, B. D.; Du, K.; Han, G. M.; Cui, C. Y.; Zhang, J. X.; kuidu@imr.ac.cn
	2015
发表期刊	MATERIALS LETTERS
ISSN	0167-577X
卷号	152 页码:272-275
摘要	A Co-rich nickel based superalloy with different size of gamma' precipitates is obtained through varied aging time. Microstructures after tensile deformation at intermediate temperature are investigated by transmission electron microscopy. With the increasing gamma' precipitate size, the deformation mode of the alloy changes from cutting the precipitates by 1/2 < 110 > dislocation pairs to cutting by 1/6 < 112 > partial dislocations. Microtwinning occurs with high density of stacking faults, attributing to the low stacking fault energy of the alloy. With further increase of the precipitate size, the alloy starts to be deformed by Orowan bypassing mechanism. (C) 2015 Elsevier B.V. All rights reserved.
部门归属	[fu, b. d. ; du, k.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [fu, b. d. ; zhang, j. x.] shandong univ, jinan 250061, peoples r china ; [han, g. m. ; cui, c. y.] chinese acad sci, inst met res, superalloys div, shenyang 110016, peoples r china
关键词	Nickel Based Superalloy Electron Microscopy Deformation Mechanism Microstructure Precipitate Size
资助者	National Natural Science Foundation of China [51171188, 51390473, 51171179, 51271097, 11332010]
收录类别	sci
语种	英语
WOS记录号	WOS:000356188100073
引用统计	被引频次：61[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/321006/74711
专题	中国科学院金属研究所
通讯作者	kuidu@imr.ac.cn
推荐引用方式 GB/T 7714	Fu, B. D.,Du, K.,Han, G. M.,et al. Deformation mechanisms in a Co-rich nickel based superalloy with different size of gamma ' precipitates[J]. MATERIALS LETTERS,2015,152:272-275.
APA	Fu, B. D.,Du, K.,Han, G. M.,Cui, C. Y.,Zhang, J. X.,&kuidu@imr.ac.cn.(2015).Deformation mechanisms in a Co-rich nickel based superalloy with different size of gamma ' precipitates.MATERIALS LETTERS,152,272-275.
MLA	Fu, B. D.,et al."Deformation mechanisms in a Co-rich nickel based superalloy with different size of gamma ' precipitates".MATERIALS LETTERS 152(2015):272-275.