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dc.contributor.author
Martínez, Carola
dc.contributor.author
Aguilar, Claudio
dc.contributor.author
Briones, Francisco
dc.contributor.author
Guzmán, Danny
dc.contributor.author
Zelaya, Maria Eugenia
dc.contributor.author
Troncoso, Loreto
dc.contributor.author
Rojas, Paula
dc.date.available
2021-02-19T19:00:02Z
dc.date.issued
2018-10-15
dc.identifier.citation
Martínez, Carola; Aguilar, Claudio; Briones, Francisco; Guzmán, Danny; Zelaya, Maria Eugenia; et al.; Effects of Zr on the amorphization of Cu-Ni-Zr alloys prepared by mechanical alloying; Elsevier Science SA; Journal of Alloys and Compounds; 765; 15-10-2018; 771-781
dc.identifier.issn
0925-8388
dc.identifier.uri
http://hdl.handle.net/11336/126138
dc.description.abstract
This work presents the effects of high energy milling with different Ni and Zr ratios on the amorphization of ternary Cu-Ni-Zr alloys (initially, Cu-43Ni-7Zr, Cu-12Ni-31Zr, Cu-33Ni-7Zr, and Cu-12Ni-23Zr; and later, Cu-23Ni-15Zr and Cu-11Ni-7Zr). Microstructure was determined using X-Ray diffraction and electron microscopy. Results were compared to thermodynamic models. In the ternary alloys under study, the lattice parameter of the Cu-Ni solid solution was generally correlated to the amounts of nickel incorporated into the Cu lattice. However, longer milling times reduced that lattice parameter and facilitated Zr insertion into the solid solution. For example, after 5 h of milling time, microstructural analysis showed the formation of a solid solution with cubic structure in Cu-43Ni-7Zr. This pattern is consistent with the presence of a lattice parameter between that of Cu and Ni (α−phase); in contrast, the Cu-33Ni-7Zr alloy showed an α-phase and another similar to Zr. Results suggest that, as the amount of nickel increases, the ability to form an amorphous phase decreases. Additionally, experimental and thermodynamic data showed a solid-solution formation stage, followed by an amorphous phase formation stage that occurred as milling time and Zr content increased.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science SA
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
AMORPHOUS ALLOYS
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COPPER BASED ALLOYS
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MECHANICAL ALLOYING
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THERMODYNAMIC ANALYSIS
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TRANSMISSION ELECTRON MICROSCOPY
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X-RAY DIFFRACTION
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Effects of Zr on the amorphization of Cu-Ni-Zr alloys prepared by mechanical alloying
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-02-09T18:47:32Z
dc.journal.volume
765
dc.journal.pagination
771-781
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Martínez, Carola. Pontificia Universidad Católica de Valparaíso; Chile
dc.description.fil
Fil: Aguilar, Claudio. Universidad Tecnica Federico Santa Maria; Chile
dc.description.fil
Fil: Briones, Francisco. Pontificia Universidad Católica de Valparaíso; Chile
dc.description.fil
Fil: Guzmán, Danny. Universidad de Atacama; Chile
dc.description.fil
Fil: Zelaya, Maria Eugenia. Comisión Nacional de Energía Atómica. Gerencia del Área de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.description.fil
Fil: Troncoso, Loreto. Universidad Austral de Chile; Chile
dc.description.fil
Fil: Rojas, Paula. Universidad Adolfo Ibañez; Chile
dc.journal.title
Journal of Alloys and Compounds
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://linkinghub.elsevier.com/retrieve/pii/S0925838818315822
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jallcom.2018.04.259
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