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Experimental investigation of a Portevin-Le Chatelier band in Ni-Co-based superalloys in relation to gamma' precipitates at 500 degrees C
Liu, Yanke1; Cai, Yulong1; Tian, Chenggang2; Zhang, Guoliang2; Han, Guoming3; Fu, Shihua1,4; Cui, Chuanyong2; Zhang, Qingchuan1
Corresponding AuthorCui, Chuanyong(chycui@imr.ac.cn) ; Zhang, Qingchuan(zhangqc@ustc.edu.cn)
2020-07-15
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume49Pages:35-41
AbstractThe macroscopically localized deformation behaviors of Ni-Co-based superalloys with different gamma' precipitate content were investigated at 500 degrees C and 1 x 10(-4) s(-1) via an in situ method namely, digital image correlation (DIC). The DIC results showed that the serrated flow of the stress-strain curves was accompanied by localized deformation of the specimens. The fracture morphology was characterized mainly by transgranular fracture with numerous dimples in the low gamma' content alloy, and intergranular fracture with large fracture section in the high gamma' content alloy. The Portevin-Le Chatelier (PLC) effect occurred in the investigated Ni-Co-based superalloys. Furthermore, the localized deformation of the high gamma' content alloy was more severe than that of the low gamma' content alloy, and the band width was slightly larger. Moreover, for the first-time ever, a special propagation feature, namely +/- 60 degrees zigzag bands characterized by head-to-tail connections, was observed in the high gamma' content alloy. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
Keywordgamma' Precipitate Ni-Co-based superalloy Dynamic strain aging Portevin-Le Chatelier effect Digital image correlation
Funding OrganizationNational Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
DOI10.1016/j.jmst.2020.02.001
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[11335010] ; National Natural Science Foundation of China[51271174] ; National Natural Science Foundation of China[11802080] ; National Natural Science Foundation of China[11627803] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040502]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000537326300005
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139190
Collection中国科学院金属研究所
Corresponding AuthorCui, Chuanyong; Zhang, Qingchuan
Affiliation1.Univ Sci & Technol China, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Superalloy Div, Shenyang 110016, Peoples R China
3.AVIC Commercial Aircraft Engine Co Ltd, Shanghai 201108, Peoples R China
4.Hainan Univ, Haikou 570228, Hainan, Peoples R China
Recommended Citation
GB/T 7714
Liu, Yanke,Cai, Yulong,Tian, Chenggang,et al. Experimental investigation of a Portevin-Le Chatelier band in Ni-Co-based superalloys in relation to gamma' precipitates at 500 degrees C[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,49:35-41.
APA Liu, Yanke.,Cai, Yulong.,Tian, Chenggang.,Zhang, Guoliang.,Han, Guoming.,...&Zhang, Qingchuan.(2020).Experimental investigation of a Portevin-Le Chatelier band in Ni-Co-based superalloys in relation to gamma' precipitates at 500 degrees C.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,49,35-41.
MLA Liu, Yanke,et al."Experimental investigation of a Portevin-Le Chatelier band in Ni-Co-based superalloys in relation to gamma' precipitates at 500 degrees C".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 49(2020):35-41.
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