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Formation Mechanism of Lamellar M23C6 Carbide in a Cobalt-Base Superalloy During Thermal Exposure at 1000 degrees C
Gui, WM; Zhang, HY; Long, HB; Jin, T; Sun, XF; Zheng, Q; Zheng, Q (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China.
2018
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Volume31Issue:1Pages:27-32
AbstractThe precipitation of the lamellar-shaped M23C6 carbide within the dendritic matrix of a cobalt-base superalloy during thermal exposure at 1000 degrees C has been investigated. Such a precipitation is not commonly observed in cobalt-base superalloys. It is found that M23C6 particles nucleate preferentially at stacking faults (SFs) in the dendritic matrix and grow along the SFs to develop a lamellar character. Additionally, a Cr depletion zone is observed in the vicinity of the lamellar M23C6 carbide, which strongly supports the presence of Suzuki segregation.; The precipitation of the lamellar-shaped M23C6 carbide within the dendritic matrix of a cobalt-base superalloy during thermal exposure at 1000 degrees C has been investigated. Such a precipitation is not commonly observed in cobalt-base superalloys. It is found that M23C6 particles nucleate preferentially at stacking faults (SFs) in the dendritic matrix and grow along the SFs to develop a lamellar character. Additionally, a Cr depletion zone is observed in the vicinity of the lamellar M23C6 carbide, which strongly supports the presence of Suzuki segregation.
description.department[gui, wei-min ; zhang, hong-yu ; jin, tao ; sun, xiao-feng ; zheng, qi] chinese acad sci, inst met res, superalloys div, shenyang 110016, liaoning, peoples r china ; [gui, wei-min] univ sci & technol china, sch mat sci & engn, hefei 230026, anhui, peoples r china ; [long, hai-bo] beijing univ technol, inst microstruct & property adv mat, beijing key lab microstruct & property adv mat, beijing 100124, peoples r china
KeywordPrecipitation Behavior Implant Alloy Temperature Microstructure
Subject AreaMetallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51331005, 51601192, 51671188, 11332010]; High Technology Research and Development Program of China [2014AA041701]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79603
Collection中国科学院金属研究所
Corresponding AuthorZheng, Q (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Gui, WM,Zhang, HY,Long, HB,et al. Formation Mechanism of Lamellar M23C6 Carbide in a Cobalt-Base Superalloy During Thermal Exposure at 1000 degrees C[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2018,31(1):27-32.
APA Gui, WM.,Zhang, HY.,Long, HB.,Jin, T.,Sun, XF.,...&Zheng, Q .(2018).Formation Mechanism of Lamellar M23C6 Carbide in a Cobalt-Base Superalloy During Thermal Exposure at 1000 degrees C.ACTA METALLURGICA SINICA-ENGLISH LETTERS,31(1),27-32.
MLA Gui, WM,et al."Formation Mechanism of Lamellar M23C6 Carbide in a Cobalt-Base Superalloy During Thermal Exposure at 1000 degrees C".ACTA METALLURGICA SINICA-ENGLISH LETTERS 31.1(2018):27-32.
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