Effect of Si on the Solidification Segregation Behavior of a New Ni-Co-Based Superalloy

doi:10.1002/adem.202100331

IMR OpenIR

	Effect of Si on the Solidification Segregation Behavior of a New Ni-Co-Based Superalloy
	Zhuang, Xinpeng 1,2; Tan, Yi 1,2; You, Xiaogang 1,2,3; Cui, Hongyang 1,2; Cui, Chuanyong 4; Zhao, Longhai 1,2; Li, Pengting 1,2
通讯作者	Tan, Yi(tanyi@dlut.edu.cn) ; You, Xiaogang(youxiaogang@dlut.edu.cn)
	2021-07-22
发表期刊	ADVANCED ENGINEERING MATERIALS
ISSN	1438-1656
页码	11
摘要	Herein, 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.
关键词	new Ni-Co-based superalloy segregations silicon solidifications
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Dalian Support Plan for Innovation of Priority Areas
DOI	10.1002/adem.202100331
收录类别	SCI
语种	英语
资助项目	National 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研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000675531200001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/159802
专题	中国科学院金属研究所
通讯作者	Tan, Yi; You, Xiaogang
作者单位	1.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
推荐引用方式 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.