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Evolution of Sliver Defect in Ni-Based Single Crystal Superalloy
Huang, Yaqi1,2; Shen, Jian1; Wang, Dong1; Xie, Guang1; Lu, Yuzhang1; Lou, Langhong1; Zhang, Jian1
Corresponding AuthorZhang, Jian(jianzhang@imr.ac.cn)
2020-09-25
Source PublicationMETALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN1073-5623
Pages9
AbstractThe evolution of sliver defect in a Ni-based single crystal superalloy was explored by casting samples with a similar geometry of the airfoil section of a turbine blade using optical microscope and electron backscattered diffraction. It was found that the sliver generally initiated from 1 to 2 tertiary dendrites at the diverging boundary between the mold wall and matrix. All slivers were tilt from matrix along the [001] and some of them rotated relative to the matrix on the plane perpendicular to the solidification direction. During solidification sliver in most castings grew with a fixed orientation. All slivers can extend along the solidification direction to the top of the casting. Most of the sliver defects showed constant width and did not extend on the casting surface. However, the sliver with large misorientation to matrix on the cross section perpendicular to the solidification direction extended on the casting surface and into the casting quickly.
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; National Science and Technology Major Project ; Key Deployment Projects of the Chinese Academy of Sciences
DOI10.1007/s11661-020-06003-9
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFB0701403] ; National Natural Science Foundation of China[51631008] ; National Natural Science Foundation of China[91860201] ; National Natural Science Foundation of China[51771204] ; National Natural Science Foundation of China[U1732131] ; National Science and Technology Major Project[2017-VII-0008-0101] ; National Science and Technology Major Project[2017-VI-0003-0073] ; Key Deployment Projects of the Chinese Academy of Sciences[ZDRW-CN-2019-01]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000572718300001
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140605
Collection中国科学院金属研究所
Corresponding AuthorZhang, Jian
Affiliation1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
Recommended Citation
GB/T 7714
Huang, Yaqi,Shen, Jian,Wang, Dong,et al. Evolution of Sliver Defect in Ni-Based Single Crystal Superalloy[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2020:9.
APA Huang, Yaqi.,Shen, Jian.,Wang, Dong.,Xie, Guang.,Lu, Yuzhang.,...&Zhang, Jian.(2020).Evolution of Sliver Defect in Ni-Based Single Crystal Superalloy.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,9.
MLA Huang, Yaqi,et al."Evolution of Sliver Defect in Ni-Based Single Crystal Superalloy".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2020):9.
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