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dc.creatorIlic, N
dc.creatorJovanović, Milan T.
dc.creatorRadmilovic, V
dc.creatorDrobnjak, D
dc.date.accessioned2018-03-01T19:10:11Z
dc.date.available2018-03-01T19:10:11Z
dc.date.issued2005
dc.identifier.issn0044-3093 (print)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/2563
dc.description.abstractThe manifestations of dynamic strain ageing in a commercial 2090 Al - Li alloy were investigated in a wide range of temperatures (-40 to 100 degrees C) and strain rates (4.16x10(-5) to 4.16x10(-3) s(-1)). Serrated yielding, as a macroscopic manifestation of dynamic strain ageing, occurs under all testing conditions. Negative strain-rate sensitivity of the flow stress is also observed. Temperature rise and strain rate reduction cause the increase of the yield strength and the work-hardening rate, as well as the decrease of elongation - the behavior being typical for the range in which C-type serrations appear. These phenomena are related to the dislocation substructure, in which features characteristic for solute atoms blocking of dislocations and Orowan bypassing are observed.en
dc.rightsrestrictedAccessen
dc.sourceZeitschrift fur Metallkundeen
dc.subjectdynamic strain ageingen
dc.subject2090 Al-Li alloyen
dc.subjectserrated yieldingen
dc.subjectnegative strain rate sensitivityen
dc.subjectdislocation substructureen
dc.titleManifestations of dynamic strain ageing in 2090 Al-Li alloyen
dc.typearticleen
dcterms.abstractИлиц, Н; Јовановиц, МТ; Радмиловиц, В; Дробњак, Д;
dc.citation.volume96
dc.citation.issue12
dc.citation.spage1386
dc.citation.epage1390
dc.identifier.wos000234600100006
dc.citation.rankM21


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