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

TitleSteady-state serrated deformation of metallic glass during indentation
Authors
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?
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
2015 Impact Factor: 3.305
2015 SCImago Journal Rankings: 2.375
ISI Accession Number ID
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

 

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.rightsCreative Commons: Attribution 3.0 Hong Kong 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-

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