Chemical heterogeneous structure and internal record of deformation behavior in Cu-Fe-Zr metallic glasses

doi:10.1016/j.jallcom.2021.161220

CORC > 金属研究所 > 中国科学院金属研究所

	Chemical heterogeneous structure and internal record of deformation behavior in Cu-Fe-Zr metallic glasses
	Sun, Xiaojun 1,2; He, Jie 1,2; Jiang, Hongxiang 1,2; Zhang, Lili 1,2; Zhao, Jiuzhou 1,2
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2021-12-15
卷号	886 页码:10
关键词	Phase separation Metallic glasses Chemical heterogeneous structure Deformation behavior Shear transformation zone
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2021.161220
通讯作者	He, Jie(jiehe@imr.ac.cn)
英文摘要	Although 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.
资助项目	National 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研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000702796200004
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/166755]
专题	金属研究所_中国科学院金属研究所
通讯作者	He, Jie
作者单位	1.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
推荐引用方式 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.