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HRTEM analysis of nanocrystallization during umaxial compression of a bulk metallic glass at room temperature
Deng, YF; He, LL; Zhang, QS; Zhang, HF; Ye, HQ
Corresponding AuthorYe, HQ()
2004
Source PublicationULTRAMICROSCOPY
ISSN0304-3991
Volume98Issue:2-4Pages:201-208
AbstractNanocrystallization during deformation of metallic glass at room temperature has significant implications to understand its deformation mechanism. We present here direct high-resolution transmission electron microscopy (HRTEM) observations of nanocrystallization in a Zr(55)AI(10)Ni(5)Cu(30) bulk metallic glass (BMG) fractured by uniaxial compression at room temperature. The formed nanocrystallites are Zr2Cu, with the average diameter of less than 10 nm, and are distributed within the round-like regions of localized plastic deformation. We also show direct evidence of atomic neighbor distance increases associated with the shrinkage and broadening of diffused ring pattern from local deformed areas, which may enhance atomic mobility so that nanocrystallization occurred. Our results demonstrate that the origin of the room-temperature deformation of BMG can be attributed to the local atomic spacing increases induced by localization of plastic flow under uniaxial compression test. (C) 2003 Elsevier B.V. All rights reserved.
Keywordhigh-resolution transmission electron microscopy bulk metallic glass plastic deformation nanocrystallization
DOI10.1016/j.ultramic.2003.08.013
Indexed BySCI
Language英语
WOS Research AreaMicroscopy
WOS SubjectMicroscopy
WOS IDWOS:000220821900014
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81805
Corresponding AuthorYe, HQ
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Shenyang Normal Univ, Dept Phys, Shenyang 110034, Peoples R China
Recommended Citation
GB/T 7714
Deng, YF,He, LL,Zhang, QS,et al. HRTEM analysis of nanocrystallization during umaxial compression of a bulk metallic glass at room temperature[J]. ULTRAMICROSCOPY,2004,98(2-4):201-208.
APA Deng, YF,He, LL,Zhang, QS,Zhang, HF,&Ye, HQ.(2004).HRTEM analysis of nanocrystallization during umaxial compression of a bulk metallic glass at room temperature.ULTRAMICROSCOPY,98(2-4),201-208.
MLA Deng, YF,et al."HRTEM analysis of nanocrystallization during umaxial compression of a bulk metallic glass at room temperature".ULTRAMICROSCOPY 98.2-4(2004):201-208.
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