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Article: Strain-rate sensitivity of hardness of nanocrystalline Ni75at.%Al25at.% alloy film

TitleStrain-rate sensitivity of hardness of nanocrystalline Ni75at.%Al25at.% alloy film
Authors
Ngan, AHWPethica, JBNg, HP
KeywordsEngineering
Engineering mechanics and materials physics
Issue Date2003
PublisherMaterials Research Society. The Journal's web site is located at http://www.mrs.org/publications/jmr
Citation
Journal of Materials Research, 2003, v. 18 n. 2, p. 382-386 How to Cite?
DOI: http://dx.doi.org/10.1557/JMR.2003.0048
AbstractRoom-temperature indentation experiments carried out on nanocrystalline Ni75at.%Al25at.% alloy films with a range of grain sizes revealed that the strain-rate sensitivity of hardness is nearly zero and that the hardness increases as grain size decreases. The strain-rate insensitivity of hardness indicates that the room-temperature strength of these alloy films is dominated by an athermal, strain-rate-insensitive component. The hardness of the films was found to be in the range of 2.4 to 3.3 GPa, depending on grain size.
Persistent Identifierhttp://hdl.handle.net/10722/43047
ISSN
0884-2914
2023 Impact Factor: 2.7
2023 SCImago Journal Rankings: 0.569
ISI Accession Number ID
WOS:000180889900016
References
References in Scopus

 

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dc.contributor.authorNgan, AHWen_HK
dc.contributor.authorPethica, JBen_HK
dc.contributor.authorNg, HPen_HK
dc.date.accessioned2007-03-23T04:37:35Z-
dc.date.available2007-03-23T04:37:35Z-
dc.date.issued2003en_HK
dc.identifier.citationJournal of Materials Research, 2003, v. 18 n. 2, p. 382-386en_HK
dc.identifier.issn0884-2914en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43047-
dc.description.abstractRoom-temperature indentation experiments carried out on nanocrystalline Ni75at.%Al25at.% alloy films with a range of grain sizes revealed that the strain-rate sensitivity of hardness is nearly zero and that the hardness increases as grain size decreases. The strain-rate insensitivity of hardness indicates that the room-temperature strength of these alloy films is dominated by an athermal, strain-rate-insensitive component. The hardness of the films was found to be in the range of 2.4 to 3.3 GPa, depending on grain size.en_HK
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dc.languageengen_HK
dc.publisherMaterials Research Society. The Journal's web site is located at http://www.mrs.org/publications/jmren_HK
dc.relation.ispartofJournal of Materials Research-
dc.rightsJournal of Materials Research. Copyright © Materials Research Society.en_HK
dc.subjectEngineeringen_HK
dc.subjectEngineering mechanics and materials physicsen_HK
dc.titleStrain-rate sensitivity of hardness of nanocrystalline Ni75at.%Al25at.% alloy filmen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0884-2914&volume=18&issue=2&spage=382&epage=386&date=2003&atitle=Strain-rate+sensitivity+of+hardness+of+nanocrystalline+Ni75at.%Al25at.%+alloy+filmen_HK
dc.identifier.emailNgan, AHW: hwngan@hkucc.hku.hk-
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1557/JMR.2003.0048en_HK
dc.identifier.scopuseid_2-s2.0-0037999212-
dc.identifier.hkuros76777-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037999212&selection=ref&src=s&origin=recordpage-
dc.identifier.volume18-
dc.identifier.issue2-
dc.identifier.spage382-
dc.identifier.epage386-
dc.identifier.isiWOS:000180889900016-
dc.publisher.placeUnited States-
dc.identifier.scopusauthoridNgan, AHW=7006827202-
dc.identifier.scopusauthoridPethica, JB=7003957401-
dc.identifier.scopusauthoridNg, HP=7401619209-
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dc.identifier.issnl0884-1616-

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