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Effect of Si on the Solidification Segregation Behavior of a New Ni-Co-Based Superalloy
Zhuang, Xinpeng1,2; Tan, Yi1,2; You, Xiaogang1,2,3; Cui, Hongyang1,2; Cui, Chuanyong4; Zhao, Longhai1,2; Li, Pengting1,2
Corresponding AuthorTan, Yi(tanyi@dlut.edu.cn) ; You, Xiaogang(youxiaogang@dlut.edu.cn)
2021-07-22
Source PublicationADVANCED ENGINEERING MATERIALS
ISSN1438-1656
Pages11
AbstractHerein, the effects of Si addition on the microstructure and solidification behavior of a new Ni-Co-based superalloy are investigated. The microstructure of the as-cast alloys is mainly composed of gamma, gamma ', (gamma-gamma ') eutectics, and MC-type carbides. The results demonstrate that Si addition significantly decreases the size and volume fraction of (gamma-gamma ') eutectics, while promoting the formation of Si-rich phase precipitated in front of the (gamma-gamma ') eutectics. The formation of a Si-rich phase is induced by the rejection of Ti and Si into the residual liquid during the gamma matrix formation. With the increase in Si content, the size distribution of (gamma-gamma ') eutectics decreases due to the formation of the Si-rich phase consuming the forming element of (gamma-gamma ') eutectics. The solidus and liquidus temperatures of the alloy decrease with the increase in Si. However, the range of melting temperature increases. The Si addition promotes the segregation of alloying elements, and Si tends to segregate in the interdendritic region.
Keywordnew Ni-Co-based superalloy segregations silicon solidifications
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Dalian Support Plan for Innovation of Priority Areas
DOI10.1002/adem.202100331
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2019YFA0705303] ; National Natural Science Foundation of China[91860123] ; National Natural Science Foundation of China[52004051] ; Dalian Support Plan for Innovation of Priority Areas[2019RT13]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000675531200001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/159802
Collection中国科学院金属研究所
Corresponding AuthorTan, Yi; You, Xiaogang
Affiliation1.Dalian Univ Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, 2 Linggong Rd, Dalian 116024, Peoples R China
2.Key Lab Energy Beam Met & Adv Mat Preparat Liaoni, Dalian 116024, Peoples R China
3.Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhuang, Xinpeng,Tan, Yi,You, Xiaogang,et al. Effect of Si on the Solidification Segregation Behavior of a New Ni-Co-Based Superalloy[J]. ADVANCED ENGINEERING MATERIALS,2021:11.
APA Zhuang, Xinpeng.,Tan, Yi.,You, Xiaogang.,Cui, Hongyang.,Cui, Chuanyong.,...&Li, Pengting.(2021).Effect of Si on the Solidification Segregation Behavior of a New Ni-Co-Based Superalloy.ADVANCED ENGINEERING MATERIALS,11.
MLA Zhuang, Xinpeng,et al."Effect of Si on the Solidification Segregation Behavior of a New Ni-Co-Based Superalloy".ADVANCED ENGINEERING MATERIALS (2021):11.
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