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Zirconium-enhanced segregation tendency of solutes X and Zr-X co-segregation induced synergistic/antagonistic effects on Ni S5 [001] (210) grain boundary

文献类型：期刊论文

作者Xue, Hongtao2; Wu, Yaqiao2; Tang, Fuling2; Li, Xiuyan1,2; Lu, Xuefeng2; Ren, Junqiang2; Li, Junchen2
刊名MATERIALS TODAY COMMUNICATIONS
出版日期2022-06-01
卷号31页码:9
关键词Co-segregation First-principles calculations Grain boundary fracture strength Grain boundary thermodynamic stability

Ni sigma 5 [001](210) symmetrical tilt grain boundary
DOI10.1016/j.mtcomm.2022.103319
通讯作者Tang, Fuling(tfl@lut.edu.cn) ; Li, Xiuyan(xyli@imr.ac.cn)
英文摘要Manipulating grain boundary (GB) segregation of alloying elements has been established as an important pathway to optimize structural materials, due to the GB segregation induced changes in material properties, whereas solute interaction effects on GB segregation and properties remain far less developed. Here, the effects of solute interactions of Zr with X (X = Zr, Re, Ta and Cu) on the segregation behavior of solutes X at the sigma 5 [001] (210) GB of nickel-based superalloys, GB excess energy and fracture strength were investigated detailedly from first-principles calculations. It was found that the pre-segregation of Zr at the Ni GB not only enhances the segregation ability of subsequent solutes Zr, Ta and Cu, but also induces a GB segregation of Re that prefers grain interiors originally. Zr-Zr/Ta, Zr-Re and Zr-Cu co-segregations have synergistic potentiation, antagonistic and synergistic additive effects on improving the considered GB properties, respectively. Relative to the unsegregated GB, the Zr-Zr/Ta/Re co-segregations could improve the GB stability and fracture strength simultaneously, while the Zr-Cu co-segregation could only improve the GB stability. The co-segregation induced GB stabilizing/destabilizing and strengthening/weakening mechanisms were probed. These results would provide theoretical supports for the GB segregation engineering and quantitative composition design of high-performance nickel based superalloys.
资助项目Ministry of Science and Technology of China (Ministry of Science and Technology of the People's Republic of China)[2017YFA0700701] ; Natural Science Fund for Distinguished Young Scholars of Gansu Province of China(Gansu Provincial Department of science and technology)[20JR5RA477] ; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals (Shenyang National Laboratory of Materials Science)[18LHPY003] ; Hongliu Excellent Young Talents Support Program of Lanzhou University of Technology ; Shenyang National Laboratory for Materials Science[18LHPY003]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000777803000002
出版者ELSEVIER
资助机构Ministry of Science and Technology of China (Ministry of Science and Technology of the People's Republic of China) ; Natural Science Fund for Distinguished Young Scholars of Gansu Province of China(Gansu Provincial Department of science and technology) ; State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals (Shenyang National Laboratory of Materials Science) ; Hongliu Excellent Young Talents Support Program of Lanzhou University of Technology ; Shenyang National Laboratory for Materials Science
源URL[http://ir.imr.ac.cn/handle/321006/172755]  
专题金属研究所_中国科学院金属研究所
通讯作者Tang, Fuling; Li, Xiuyan
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
推荐引用方式
GB/T 7714		 Xue, Hongtao,Wu, Yaqiao,Tang, Fuling,et al.

Zirconium-enhanced segregation tendency of solutes X and Zr-X co-segregation induced synergistic/antagonistic effects on Ni S5 [001] (210) grain boundary

[J]. MATERIALS TODAY COMMUNICATIONS,2022,31:9.
APA Xue, Hongtao.,Wu, Yaqiao.,Tang, Fuling.,Li, Xiuyan.,Lu, Xuefeng.,...&Li, Junchen.(2022).

Zirconium-enhanced segregation tendency of solutes X and Zr-X co-segregation induced synergistic/antagonistic effects on Ni S5 [001] (210) grain boundary

.MATERIALS TODAY COMMUNICATIONS,31,9.
MLA Xue, Hongtao,et al."

Zirconium-enhanced segregation tendency of solutes X and Zr-X co-segregation induced synergistic/antagonistic effects on Ni S5 [001] (210) grain boundary

".MATERIALS TODAY COMMUNICATIONS 31(2022):9.

入库方式： OAI收割

来源：金属研究所

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