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Effects of Re on surface eutectic formation for Ni-base single crystal superalloys during directional solidification
Cao, Liang; Zhou, Yizhou; Jin, Tao; Sun, Xiaofeng; Zhou, YZ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
2017-11-01
Source PublicationJOURNAL MATER SCI TECHNOL
ISSN1005-0302
Volume33Issue:11Pages:1308-1313
AbstractEffects of Re on the formation of surface eutectics have been investigated by using Ni-base single crystal superalloys with different Re additions. It was found that Re promotes the segregation of Al and Ta to the eutectic melt, leading to an increase of the surface and internal eutectics. In addition, the addition of Re also increased the freezing range, the local solidification time, and the permeability of the dendritic network within the mushy zone. These factors ultimately promoted the outflow of the interdendritic residual liquid with the action of solidification shrinkage, and led to the formation of more surface eutectics. In contrast, the addition of Re had no obvious influence on the surface eutectic microstructures. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.; Effects of Re on the formation of surface eutectics have been investigated by using Ni-base single crystal superalloys with different Re additions. It was found that Re promotes the segregation of Al and Ta to the eutectic melt, leading to an increase of the surface and internal eutectics. In addition, the addition of Re also increased the freezing range, the local solidification time, and the permeability of the dendritic network within the mushy zone. These factors ultimately promoted the outflow of the interdendritic residual liquid with the action of solidification shrinkage, and led to the formation of more surface eutectics. In contrast, the addition of Re had no obvious influence on the surface eutectic microstructures. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
description.department[cao, liang ; zhou, yizhou ; jin, tao ; sun, xiaofeng] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china
KeywordSurface Eutectic Re Addition Single Crystal Superalloy
Subject AreaMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China [51271186, 51001103]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78999
Collection中国科学院金属研究所
Corresponding AuthorZhou, YZ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
Recommended Citation
GB/T 7714
Cao, Liang,Zhou, Yizhou,Jin, Tao,et al. Effects of Re on surface eutectic formation for Ni-base single crystal superalloys during directional solidification[J]. JOURNAL MATER SCI TECHNOL,2017,33(11):1308-1313.
APA Cao, Liang,Zhou, Yizhou,Jin, Tao,Sun, Xiaofeng,&Zhou, YZ .(2017).Effects of Re on surface eutectic formation for Ni-base single crystal superalloys during directional solidification.JOURNAL MATER SCI TECHNOL,33(11),1308-1313.
MLA Cao, Liang,et al."Effects of Re on surface eutectic formation for Ni-base single crystal superalloys during directional solidification".JOURNAL MATER SCI TECHNOL 33.11(2017):1308-1313.
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