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Slow ß relaxation in La-based metallic glasses based on mechanical spectroscopy measurements
dc.contributor.author | Qiao, Jichao |
dc.contributor.author | Pelletier, J. M. |
dc.contributor.author | Li, Ning |
dc.contributor.author | Crespo Artiaga, Daniel |
dc.contributor.author | Yao, Yao |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física |
dc.date.accessioned | 2017-10-10T13:16:56Z |
dc.date.available | 2019-04-02T00:30:39Z |
dc.date.issued | 2017-04-01 |
dc.identifier.citation | Qiao, J., Pelletier, J., Li, N., Crespo, D., Yao, Y. Slow ß relaxation in La-based metallic glasses based on mechanical spectroscopy measurements. "Journal of iron and steel research international", 1 Abril 2017, vol. 24, núm. 4, p. 1-5. |
dc.identifier.issn | 1006-706X |
dc.identifier.uri | http://hdl.handle.net/2117/108596 |
dc.description.abstract | Dynamic mechanical relaxations of La-based metallic glasses were investigated by mechanical spectroscopy. In the framework of the mixing enthalpy of constituent atoms, it was found that ß relaxation was less evident by the addition of Cu to replace Ni in the LaCuNiAl glassy alloy. By introducing Cu into the LaNiAl metallic glass, the mixing enthalpy was less negative, which led to weaker ß relaxation of the metallic glasses. The a relaxation of the La-based metallic glasses could be described by a Kohlrausch-Williams-Watts (KWW) function with a Kohlrausch exponent ßKWW around 0.5. It should be noted that physical aging above the glass transition temperature Tg induced a decrease of ß relaxation intensity in the La-based metallic glass. |
dc.format.extent | 5 p. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física::Termodinàmica |
dc.subject.lcsh | Metal crystals |
dc.subject.lcsh | Thermodynamics |
dc.subject.other | Metallic glass |
dc.subject.other | Mechanical relaxation |
dc.subject.other | ß relaxation |
dc.subject.other | Mixing enthalpy |
dc.title | Slow ß relaxation in La-based metallic glasses based on mechanical spectroscopy measurements |
dc.type | Article |
dc.subject.lemac | Cristalls metàl·lics |
dc.subject.lemac | Termodinàmica |
dc.contributor.group | Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials |
dc.identifier.doi | 10.1016/S1006-706X(17)30059-6 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S1006706X17300596 |
dc.rights.access | Open Access |
local.identifier.drac | 20330363 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Qiao, J.; Pelletier, J.; Li, N.; Crespo, D.; Yao, Y. |
local.citation.publicationName | Journal of iron and steel research international |
local.citation.volume | 24 |
local.citation.number | 4 |
local.citation.startingPage | 1 |
local.citation.endingPage | 5 |
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