TY - JOUR
T1 - Identifying the high entropy characteristic in La-based metallic glasses
AU - Zhang, Langting
AU - Duan, Yajuan
AU - Crespo, Daniel
AU - Pineda, Eloi
AU - Wada, Takeshi
AU - Kato, Hidemi
AU - Pelletier, Jean Marc
AU - Qiao, Jichao
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (NSFC) (Grant No. 51971178), the Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province (Grant No. 2021JC-12), and the Natural Science Foundation of Chongqing (Grant No. cstc2020jcyj-jqX0001). E. Pineda and D. Crespo acknowledge financial support from MICINN (Grant No. FIS2017-82625-P) and Generalitat de Catalunya (Grant No. 2017SGR0042). The investigation of Y. J. Duan was sponsored by the Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University (No. CX202031). The investigation of L. T. Zhang was sponsored by the Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University (No. CX2021015).
Publisher Copyright:
© 2021 Author(s).
PY - 2021/8/2
Y1 - 2021/8/2
N2 - High temperature deformation was probed in a La-based high entropy metallic glass with an evident slow β relaxation. The correlation between high configurational entropy and high temperature deformation mechanism was analyzed. On the one hand, by increasing the strain rate, the degree of deviation from Newtonian behavior in high entropy metallic glasses is lower than that of conventional metallic glasses, which is ascribed to the high configurational entropy. On the other hand, high configurational entropy leads to a decrease in activation volume in high temperature deformation of metallic glasses. Identifying the influence of high configurational entropy on the deformation mechanism paves the way for further understanding of the mechanical behavior of metallic glasses.
AB - High temperature deformation was probed in a La-based high entropy metallic glass with an evident slow β relaxation. The correlation between high configurational entropy and high temperature deformation mechanism was analyzed. On the one hand, by increasing the strain rate, the degree of deviation from Newtonian behavior in high entropy metallic glasses is lower than that of conventional metallic glasses, which is ascribed to the high configurational entropy. On the other hand, high configurational entropy leads to a decrease in activation volume in high temperature deformation of metallic glasses. Identifying the influence of high configurational entropy on the deformation mechanism paves the way for further understanding of the mechanical behavior of metallic glasses.
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U2 - 10.1063/5.0059822
DO - 10.1063/5.0059822
M3 - Article
AN - SCOPUS:85112246643
VL - 119
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 5
M1 - 051905
ER -