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Nanoindentation of CuZr metallic glasses subjected to thermal–pressure treatments
| dc.contributor.author | Amigo, Nicolás | |
| dc.contributor.author | Aquistapace, F. | |
| dc.contributor.author | Sayad, Saeid | |
| dc.contributor.author | Valencia, F. | |
| dc.contributor.author | Alahyarizadeh, Ghasem | |
| dc.contributor.author | Bringa, E. M. | |
| dc.date.accessioned | 2024-01-23T18:31:03Z | |
| dc.date.available | 2024-01-23T18:31:03Z | |
| dc.date.issued | 2024 | |
| dc.identifier.uri | http://repositorio.ucm.cl/handle/ucm/5211 | |
| dc.description.abstract | In this work, nanoindentation tests were performed on CuZr MGs subjected to thermal–pressure treatments using molecular dynamics simulations, with pressures in the range of 0 to 20 GPa. No significant variations in the mechanical properties were observed. However, in the 20 GPa sample, shear bands (SBs) penetrated slightly more homogeneously compared to the other cases. Furthermore, a novel machine learning algorithm, called MultiSOM, revealed that the contact zone with the indenter was associated to high-shear atoms, whereas the inner and outer regions of the SBs were related to medium-shear and low-shear atoms, respectively. The 20 GPa case presented larger fractions of low-shear atoms, whereas the opposite behavior occurred in the 0 GPa case. Thus, despite the slight variation in mechanical properties, higher pressures still result in less-localized deformation. Overall, our results provide a quantitative description of plasticity in MGs using machine learning methods. | es_CL |
| dc.language.iso | en | es_CL |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Chile | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | * |
| dc.source | Journal of Non-Crystalline Solids, 626, 122789 | es_CL |
| dc.title | Nanoindentation of CuZr metallic glasses subjected to thermal–pressure treatments | es_CL |
| dc.type | Article | es_CL |
| dc.ucm.facultad | Facultad de Ciencias de la Ingeniería | es_CL |
| dc.ucm.indexacion | Scopus | es_CL |
| dc.ucm.indexacion | Isi | es_CL |
| dc.ucm.uri | sciencedirect.com/science/article/abs/pii/S0022309323006543?via%3Dihub | es_CL |
| dc.ucm.doi | doi.org/10.1016/j.jnoncrysol.2023.122789 | es_CL |
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Excepto si se señala otra cosa, la licencia de la publicación se describe como Atribución-NoComercial-SinDerivadas 3.0 Chile