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journal article·2015-01-01Open access

Structural evolution in Ti-Cu-Ni metallic glasses during heating

P. Gargarella, S. Pauly, M. Stoica, G. Vaughan, C. R. M. Afonso, U. Kühn, J. Eckert

APL Materials· Volume 3· Issue 1
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Source abstract

Abstract

The structural evolution of Ti50Cu43Ni7 and Ti55Cu35Ni10 metallic glasses during heating was investigated by in-situ synchrotron X-ray diffraction. The width of the most intense diffraction maximum of the glassy phase decreases slightly during relaxation below the glass transition temperature. Significant structural changes only occur above the glass transition manifesting in a change in the respective peak positions. At even higher temperatures, nanocrystals of the shape memory B2-Ti(Cu,Ni) phase precipitate, and their small size hampers the occurrence of a martensitic transformation.
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Research context

Ceramics & glassesNanomaterials

OpenAlex topics: Metallic Glasses and Amorphous Alloys · Shape Memory Alloy Transformations · Phase-change materials and chalcogenides

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

IFW Dresden, Institut für Komplexe Materialien 1 , Helmholtzstraße 20, D-01069 Dresden, Germany

Universidade Federal de São Carlos 2 Departamento de Engenharia de Materiais, , Rodovia Washington Luiz, Km 235, 13565-905 São Carlos, São Paulo, Brazil

European Synchrotron Radiation Facilities 3 , BP 220, 38043 Grenoble, France

Institut für Werkstoffwissenschaft, Technische Universität Dresden 4 , D-01062 Dresden, Germany

Funding

São Paulo Research Foundation · Conselho Nacional de Desenvolvimento Científico e Tecnológico · German Academic Exchange Service

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