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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
发表期刊JOURNAL MATER SCI TECHNOL
ISSN1005-0302
卷号33期号:11页码:1308-1313
摘要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.; 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.
部门归属[cao, liang ; zhou, yizhou ; jin, tao ; sun, xiaofeng] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china
关键词Surface Eutectic Re Addition Single Crystal Superalloy
学科领域Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者National Natural Science Foundation of China [51271186, 51001103]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78999
专题中国科学院金属研究所
通讯作者Zhou, YZ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式
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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