Segregation behavior of alloying elements at Ni Σ5 [001](210) symmetrical tilt grain boundary in nickel-based superalloys and their stabilization and strengthening mechanisms for the grain boundary

doi:10.1016/j.matchemphys.2020.123977

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	Segregation behavior of alloying elements at Ni Σ5 [001](210) symmetrical tilt grain boundary in nickel-based superalloys and their stabilization and strengthening mechanisms for the grain boundary
	Xue, Hongtao; Luo, Yaqiao; Tang, Fuling; Lu, Xuefeng; Ren, Junqiang
刊名	Materials Chemistry and Physics
	2021-01-15
卷号	258
关键词	Alloying Alloying elements Calculations Chemical bonds Electronegativity Fracture toughness Grain boundaries Nickel Segregation (metallography) SuperalloysElectronegativity difference First-principles calculation Ni-based superalloys Nickel- based superalloys Segregation energies Segregation engineering Strengthening mechanisms Structure and properties
ISSN号	02540584
DOI	10.1016/j.matchemphys.2020.123977
英文摘要	To reduce or even eliminate the negative effects of grain boundaries (GBs) in nickel-based superalloys, the GB-segregation behaviors of 14 main alloying elements X of superalloys and their effects on the stability and fracture strength of Ni Σ5 [001](210) GB were systematically investigated based on the concept of GB segregation engineering (GBSE), using first-principles calculations. We found that 10 alloying elements can segregate towards the GB. Their GB-segregation tendencies increase in the order of W © 2020 Elsevier B.V.
语种	英语
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/132350]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
作者单位	State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Xue, Hongtao,Luo, Yaqiao,Tang, Fuling,et al. Segregation behavior of alloying elements at Ni Σ5 [001](210) symmetrical tilt grain boundary in nickel-based superalloys and their stabilization and strengthening mechanisms for the grain boundary[J]. Materials Chemistry and Physics,2021,258.
APA	Xue, Hongtao,Luo, Yaqiao,Tang, Fuling,Lu, Xuefeng,&Ren, Junqiang.(2021).Segregation behavior of alloying elements at Ni Σ5 [001](210) symmetrical tilt grain boundary in nickel-based superalloys and their stabilization and strengthening mechanisms for the grain boundary.Materials Chemistry and Physics,258.
MLA	Xue, Hongtao,et al."Segregation behavior of alloying elements at Ni Σ5 [001](210) symmetrical tilt grain boundary in nickel-based superalloys and their stabilization and strengthening mechanisms for the grain boundary".Materials Chemistry and Physics 258(2021).