Influence of magnetic interaction on configurational-entropy-suppressed β-relaxations in FeNi-based metallic glasses
L. Q. Yang,
B. Huang,
J. Yi,
N. Z. Zhang,
C. Geng,
Y. Yang,
X. X. Shui,
G. Wang
Affiliations
L. Q. Yang
Institute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
B. Huang
Institute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
J. Yi
Institute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
N. Z. Zhang
Institute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
C. Geng
Institute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
Y. Yang
Institute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
X. X. Shui
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 519 Zhuangshi Road, Zhenhai District, Ningbo, Zhejiang 315201, China
G. Wang
Institute of Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
In this article, we studied the effect of magnetic interaction on β-relaxations of FexNi72−xSi4.8B19.2Nb4 (x = 0, 10, 30, 50, 72) metallic glasses (MGs). It is found that, with the substitution of Fe by Ni, the β-relaxation changes from a shoulder to an excess wing, suggesting an entropic effect on the suppression of β-relaxation. A peak caused by ferromagnetic transformation appears in the loss modulus curve of Fe30Ni42Si4.8B19.2Nb4 MG with suppressed β-relaxation, which is sensitive to stress and strain. In addition, the β-relaxation can be further varied by annealing under a transverse or longitudinal magnetic field. The results suggest that the entropy-suppressed β-relaxation in MGs can be affected by magnetic interaction that could help to improve their mechanical properties.
