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Intergrowth of C phase within mu phase in a Re-containing Ni-base single crystal superalloy
Gao, S; Zhou, YZ; Liu, ZQ; Jin, T; Liu, ZQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
2018-05-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume34Issue:5Pages:806-810
AbstractPrecipitation of topologically close-packed phases in a Re-containing Ni-base single crystal superalloy was studied under elevated temperature by in situ transmission electron microscopy. Above 1150 degrees C, a new intergrowth structure called C phase was found within mu phase with a defined crystallographic orientation relationship. Elements mapping analysis reveals that C phase has a similar element composition as mu phase, but contains a lower level of Cr, W and Re. With increasing temperature, the proportion of C phase increases gradually. At 1250 degrees C, C phase becomes the dominant precipitate. It is demonstrated that C phase is more thermodynamically stable than mu phase above 1150 degrees C that leads to an intergrowth pathway from mu phase to C phase. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.; Precipitation of topologically close-packed phases in a Re-containing Ni-base single crystal superalloy was studied under elevated temperature by in situ transmission electron microscopy. Above 1150 degrees C, a new intergrowth structure called C phase was found within mu phase with a defined crystallographic orientation relationship. Elements mapping analysis reveals that C phase has a similar element composition as mu phase, but contains a lower level of Cr, W and Re. With increasing temperature, the proportion of C phase increases gradually. At 1250 degrees C, C phase becomes the dominant precipitate. It is demonstrated that C phase is more thermodynamically stable than mu phase above 1150 degrees C that leads to an intergrowth pathway from mu phase to C phase. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
description.department[gao, shuang ; zhou, yizhou ; liu, zhi-quan ; jin, tao] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china ; [gao, shuang] tsinghua univ, div energy & environm, grad sch shenzhen, shenzhen 518055, peoples r china
KeywordNickel-based Superalloys Close-packed Phase Rhenium Additions Creep Resistance Precipitation Cmsx-4 Co7w6
Subject AreaMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51271186]; Hundred Talents Program of the Chinese Academy of Sciences
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79332
Collection中国科学院金属研究所
Corresponding AuthorZhou, YZ; Liu, ZQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Gao, S,Zhou, YZ,Liu, ZQ,et al. Intergrowth of C phase within mu phase in a Re-containing Ni-base single crystal superalloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(5):806-810.
APA Gao, S,Zhou, YZ,Liu, ZQ,Jin, T,&Liu, ZQ .(2018).Intergrowth of C phase within mu phase in a Re-containing Ni-base single crystal superalloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(5),806-810.
MLA Gao, S,et al."Intergrowth of C phase within mu phase in a Re-containing Ni-base single crystal superalloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.5(2018):806-810.
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