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Article: Steady-state serrated deformation of metallic glass during indentation

TitleSteady-state serrated deformation of metallic glass during indentation
Authors
Ng, KYZuo, LNgan, AHW
KeywordsBulk metallic glass (BMG)
Nanoindentation
Plastic deformation
Strain rate
Issue Date2009
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/scriptamat
Citation
Scripta Materialia, 2009, v. 61 n. 10, p. 955-958 How to Cite?
DOI: http://dx.doi.org/10.1016/j.scriptamat.2009.07.036
AbstractUsing an exponential load profile with a Berkovich tip, the strain bursts produced during nanoindentation of a (Cu55Mg33Y12)-Be bulk metallic glass are found to reach a steady state, in which the hardness becomes constant, the displacement jumps normalized by the indent depth approach a constant range 1.4 ± 1.2% and correspond to a reduction in hardness of 2.8 ± 2.4%, and the inter-burst duration multiplied by the strain rate approaches a constant range 1.8 ± 0.6%. This steady-state behavior is insensitive to the strain rate used. © 2009 Acta Materialia Inc.
Persistent Identifierhttp://hdl.handle.net/10722/75506
ISSN
1359-6462
2021 Impact Factor: 6.302
2020 SCImago Journal Rankings: 2.027
ISI Accession Number ID
WOS:000272263400008
Funding AgencyGrant Number
Research Grants Council of the Hong Kong Special Administration Region, PR ChinaHKU7156/08E
Funding Information:

The work described in this paper was supported by a grant from the Research Grants Council of the Hong Kong Special Administration Region, PR China (Project No. HKU7156/08E). The authors are grateful to Dr. M. G. Wang for supplying the BMG sample.

References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorNg, KYen_HK
dc.contributor.authorZuo, Len_HK
dc.contributor.authorNgan, AHWen_HK
dc.date.accessioned2010-09-06T07:11:50Z-
dc.date.available2010-09-06T07:11:50Z-
dc.date.issued2009en_HK
dc.identifier.citationScripta Materialia, 2009, v. 61 n. 10, p. 955-958en_HK
dc.identifier.issn1359-6462en_HK
dc.identifier.urihttp://hdl.handle.net/10722/75506-
dc.description.abstractUsing an exponential load profile with a Berkovich tip, the strain bursts produced during nanoindentation of a (Cu55Mg33Y12)-Be bulk metallic glass are found to reach a steady state, in which the hardness becomes constant, the displacement jumps normalized by the indent depth approach a constant range 1.4 ± 1.2% and correspond to a reduction in hardness of 2.8 ± 2.4%, and the inter-burst duration multiplied by the strain rate approaches a constant range 1.8 ± 0.6%. This steady-state behavior is insensitive to the strain rate used. © 2009 Acta Materialia Inc.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/scriptamaten_HK
dc.relation.ispartofScripta Materialiaen_HK
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectBulk metallic glass (BMG)en_HK
dc.subjectNanoindentationen_HK
dc.subjectPlastic deformationen_HK
dc.subjectStrain rateen_HK
dc.titleSteady-state serrated deformation of metallic glass during indentationen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1359-6462&volume=61&issue=10&spage=955&epage=958&date=2009&atitle=Steady-state+serrated+deformation+of+metallic+glass+during+indentationen_HK
dc.identifier.emailNg, KY:ph03nky@alumni.ust.hken_HK
dc.identifier.emailNgan, AHW:hwngan@hkucc.hku.hken_HK
dc.identifier.authorityNg, KY=rp01365en_HK
dc.identifier.authorityNgan, AHW=rp00225en_HK
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.scriptamat.2009.07.036en_HK
dc.identifier.scopuseid_2-s2.0-69949091357en_HK
dc.identifier.hkuros170078en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-69949091357&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume61en_HK
dc.identifier.issue10en_HK
dc.identifier.spage955en_HK
dc.identifier.epage958en_HK
dc.identifier.isiWOS:000272263400008-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridNg, KY=26434356600en_HK
dc.identifier.scopusauthoridZuo, L=36863503700en_HK
dc.identifier.scopusauthoridNgan, AHW=7006827202en_HK
dc.identifier.citeulike5395872-
dc.identifier.issnl1359-6462-

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