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Chemical heterogeneous structure and internal record of deformation behavior in Cu-Fe-Zr metallic glasses
Sun, Xiaojun1,2; He, Jie1,2; Jiang, Hongxiang1,2; Zhang, Lili1,2; Zhao, Jiuzhou1,2
Corresponding AuthorHe, Jie(jiehe@imr.ac.cn)
2021-12-15
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume886Pages:10
AbstractAlthough chemical structural heterogeneities were induced into metallic glasses (MGs) to improve their ductility, the nature of the influence of the heterogeneous structure on their deformation behavior is still unclear. Here, by using microalloying elements to tailor the microstructure in Cu-Fe-Zr MGs, the formation of heterogeneous structure and the correlation between the heterogeneous structure and the deformation behavior are discussed. The results show that a honeycomb-like heterogeneous structure is formed in the (Cu0.5Fe0.5)(40)Zr59X1 (X=Nb and Ta) alloys. From a viewpoint of dynamic, the nature of the microalloying effect on the microstructure has been analysed. The deformation behavior of (Cu0.5Fe0.5)(40)Zr59X1 MGs with a high population of nanoscale glassy particles (NGPs) is investigated by nanoindentation and bending test. These glassy particles play an interesting role in the internal record of the local structure evolution. It was found that NGPs contiguous to shear bands (SBs) coarsen by Ostwald ripening. However, NGPs within SB would dissolve due to direct mechanical shearing and mixing. It indicates that the volume of shear transformation zone decreases obviously in the heterogeneous MGs due to the high fraction of interfaces. This work is of significance in understanding the relationship between structure and property of MGs. (C) 2021 Elsevier B.V. All rights reserved.
KeywordPhase separation Metallic glasses Chemical heterogeneous structure Deformation behavior Shear transformation zone
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province
DOI10.1016/j.jallcom.2021.161220
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51774264] ; National Natural Science Foundation of China[51974288] ; National Natural Science Foundation of China[51574216] ; National Natural Science Foundation of China[51901231] ; Natural Science Foundation of Liaoning Province[2019-MS-332]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000702796200004
PublisherELSEVIER SCIENCE SA
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166756
Collection中国科学院金属研究所
Corresponding AuthorHe, Jie
Affiliation1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Sun, Xiaojun,He, Jie,Jiang, Hongxiang,et al. Chemical heterogeneous structure and internal record of deformation behavior in Cu-Fe-Zr metallic glasses[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,886:10.
APA Sun, Xiaojun,He, Jie,Jiang, Hongxiang,Zhang, Lili,&Zhao, Jiuzhou.(2021).Chemical heterogeneous structure and internal record of deformation behavior in Cu-Fe-Zr metallic glasses.JOURNAL OF ALLOYS AND COMPOUNDS,886,10.
MLA Sun, Xiaojun,et al."Chemical heterogeneous structure and internal record of deformation behavior in Cu-Fe-Zr metallic glasses".JOURNAL OF ALLOYS AND COMPOUNDS 886(2021):10.
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