Home > Articles > Published articles > Structure, mechanical properties and nanocrystallization of (FeCoCrNi)-(B,Si) high-entropy metallic glasses |
Date: | 2022 |
Abstract: | New high-entropy metallic glasses were produced by adding B and Si to the Fe25Co25Cr25Ni25 high entropy alloy. Extremely hard materials were obtained by inducing structural relaxation and nanocrystallization in the original amorphous metals. In this work we study the effects of the composition and annealing treatments on the structure and the mechanical properties. The changes in structure during heating treatments were determined by in situ synchrotron X-ray diffraction and the mechanical behavior was studied by nanoindentation. The mechanical properties of the as-quenched glasses were tuned through the annealing treatments, obtaining amorphous/nanocrystalline composites appropriate for highly demanding, wear resistance applications. The relative amount of B and Si is shown to determine the main nanocrystalline phase, FCC or BCC, which has a key influence on the mechanical properties. |
Grants: | Agencia Estatal de Investigación PID2020-112975GB-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2018FI_B_00502 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-42 Agencia Estatal de Investigación MAT2017-86357-C3-1-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-292 |
Rights: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. |
Language: | Anglès |
Document: | Article ; recerca ; Versió publicada |
Subject: | High-entropy alloys ; Synchrotron radiation ; Nanoindentation ; Metallic glass |
Published in: | Intermetallics, Vol. 141 (February 2022) , art. 107432, ISSN 1879-0216 |
10 p, 4.8 MB |