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Effect of Hydrogen Charging on Pop-in Behavior of a Zr-Based Metallic Glass

dc.contributor.authorTian, Lin
dc.contributor.authorTönnies, Dominik
dc.contributor.authorHirsbrunner, Moritz
dc.contributor.authorSievert, Tim
dc.contributor.authorShan, Zhiwei
dc.contributor.authorVolkert, Cynthia A.
dc.date.accessioned2020-01-14T11:13:39Z
dc.date.available2020-01-14T11:13:39Z
dc.date.issued2020de
dc.relation.ISSN2075-4701de
dc.identifier.urihttp://resolver.sub.uni-goettingen.de/purl?gs-1/17092
dc.description.abstractIn this work, structural and mechanical properties of hydrogen-charged metallic glass are studied to evaluate the e ect of hydrogen on early plasticity. Hydrogen is introduced into samples of a Zr-based (Vit 105) metallic glass using electrochemical charging. Nanoindentation tests reveal a clear increase in modulus and hardness as well as in the load of the first pop-in with increasing hydrogen content. At the same time, the probability of a pop-in occurring decreases, indicating that hydrogen hinders the onset of plastic instabilities while allowing local homogeneous deformation. The hydrogen-induced sti ening and hardening is rationalized by hydrogen stabilization of shear transformation zones (STZs) in the amorphous structure, while the improved ductility is attributed to the change in the spatial correlation of the STZs.de
dc.description.sponsorshipOpen-Access-Publikationsfonds 2019
dc.language.isoengde
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectmetallic glass; hydrogen; indentation; pop-in; plasticityde
dc.subject.ddc530
dc.titleEffect of Hydrogen Charging on Pop-in Behavior of a Zr-Based Metallic Glassde
dc.typejournalArticlede
dc.identifier.doi10.3390/met10010022
dc.type.versionpublishedVersionde
dc.relation.eISSN2075-4701
dc.bibliographicCitation.volume10de
dc.bibliographicCitation.issue1de
dc.type.subtypejournalArticle
dc.bibliographicCitation.articlenumber22de
dc.description.statuspeerReviewedde
dc.bibliographicCitation.journalMetalsde


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