Nanoindentation analysis of the mechanical behavior of Zr-based metallic glasses with Sn, Ta and W additions |
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Authors: | Sophie Nowak Patrick Ochin Alexandre Pasko Olek Maciejak Pascal Aubert Yannick Champion |
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Affiliation: | aICMPE-CNRS, UMR 7182, Université Paris 12, 15 rue Georges Urbain, 94407 Vitry-sur-Seine Cedex, France;bUniversité d’Evry Val d’Essonne, Boulevard François Mitterand, 91000 Evry, France |
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Abstract: | Zr57Cu20Al10Ti8Ni5 and modified composition by adding Sn, W or Ta are studied using standard mechanical test and nanoindentation. Addition of refractory elements with a Sn micro-addition increases clearly the Young's modulus and the hardness of basic BMG. However, Sn reduces plasticity. Moreover these experiments allowed, in confine plasticity conditions, estimating an apparent activation volume associated to a plastic deformation (≈150 Å3). |
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Keywords: | Metallic glasses Nanoindentation Mechanical properties |
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