Instrumented indentation of transforming and no-transforming phases in Cu-Al-Be shape-memory alloys

dc.creatorMontecinos Espinoza, Susana de Los Angeles
dc.creatorCuniberti, Adela Maria
dc.creatorSimison, Silvia Noemi
dc.date2012-09
dc.date.accessioned2023-08-31T00:09:56Z
dc.date.available2023-08-31T00:09:56Z
dc.identifierhttp://hdl.handle.net/11336/189616
dc.identifierMontecinos Espinoza, Susana de Los Angeles; Cuniberti, Adela Maria; Simison, Silvia Noemi; Instrumented indentation of transforming and no-transforming phases in Cu-Al-Be shape-memory alloys; Elsevier; Intermetallics; 28; 9-2012; 58-64
dc.identifier0966-9795
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8543167
dc.descriptionThe behavior of Cu-Al-Be alloys under instrumented indentation using a Berkovich tip was studied. The pseudoelastic effect was evidenced in the transforming β Cu-Al-Be phase as a closed hysteresis loop between the unloading-reloading paths in the P-h curves and high depth recovery ratios. From series of indentations conducted in the (β + γ 2) specimens, it was found that the indentation response of the two phases is remarkably different. Unlike the pseudoelastic β phase, γ 2 precipitates present an elastic-plastic behavior, obtaining a complete coincidence between the unload and reload path in the load-displacement curves, and a lower recovery capacity. An average contact pressure versus the penetration depth curve was estimated for each indentation curve, and results suggest that 8 GPa and 3 GPa can be considered an elastic limit for γ 2 and β phase respectively under Berkovich indenter stress state. The elastic modulus and the hardness of both phases were estimated from load-displacement curves using the Oliver and Pharr method.
dc.descriptionFil: Montecinos Espinoza, Susana de Los Angeles. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física de Materiales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina
dc.descriptionFil: Cuniberti, Adela Maria. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física de Materiales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina
dc.descriptionFil: Simison, Silvia Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherElsevier
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0966979512001641
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.intermet.2012.03.057
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subjectB. ELASTIC PROPERTIES
dc.subjectB. MARTENSITIC TRANSFORMATIONS
dc.subjectB. PRECIPITATES
dc.subjectB. SHAPE-MEMORY EFFECTS
dc.subjectF. MECHANICAL TESTING
dc.subjecthttps://purl.org/becyt/ford/2.5
dc.subjecthttps://purl.org/becyt/ford/2
dc.titleInstrumented indentation of transforming and no-transforming phases in Cu-Al-Be shape-memory alloys
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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