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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
Source PublicationMATERIALS LETTERS
ISSN0167-577X
Volume152Pages:272-275
AbstractA 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.
description.department[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
KeywordNickel Based Superalloy Electron Microscopy Deformation Mechanism Microstructure Precipitate Size
Funding OrganizationNational Natural Science Foundation of China [51171188, 51390473, 51171179, 51271097, 11332010]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74711
Collection中国科学院金属研究所
Corresponding Authorkuidu@imr.ac.cn
Recommended Citation
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.
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