Structural, thermal and magnetic properties of Fe–Si–B–P–Cu melt-spun ribbons: Application of non-isothermal kinetics and the amorphous random anisotropy model

FeSiBPNbCu Bulk Nanocrystalline Alloys with High GFA and Excellent Soft-Magnetic Properties

“…In order to further investigate the effect of Nb on the thermal stability and crystallization process, the activation energy (E a ) of α-Fe(Si) and Fe-(B, P) phases, represented as E a1 and E a2 , was derived by kinetic analyses. On the basis of the DSC curves of as-cast ribbons at the heating rates of 0.167, 0.33, 0.5, and 0.67 K/s, the corresponding Kissinger plots of the specimens were constructed through the Kissinger method [21]:…”

“…The weak diffusion ability of Nb atoms and enrichment in the interface between α-Fe(Si) and the amorphous phases greatly suppress the growth of grains. Furthermore, Nb has a strong affinity with B and P, making the E a much higher [18,21,22].…”

Analysis of grain growth process in melt spun Fe–B alloys under the initial saturated grain boundary segregation condition

“…NC ribbons of Fe-based alloys, such as Fe-B, Fe-Si-B-P-Cu, Fe-Cu-Mo-Si-B have been proved to possess excellent soft magnetic properties because of the reduction of grain size [4,5]. Analogously, Liu et al reviewed that the new rare earth-Mg-Ni-based hydrogen storage alloys with small crystal grains were usually prepared by rapid quenching and melt spinning [6], since the reduction of grain size upon melt spinning obviously enhances the cyclic stability of the alloy electrodes.…”

“…However, the melt spinning technique is a non-equilibrium solidification which changes the growth velocity and solidification behavior [4,7,8], so that the melt-spun alloys are unstable because of the non-equilibrium effects. For nanoscale alloys, the thermal stability is crucial to engineering applications.…”

Influence of thermally induced structural transformations on hardness in Fe89.8Ni1.5Si5.2B3C0.5 amorphous alloy

“…Thermal stability of these alloys and its correlation with electrical and magnetic properties have been a focus of some interest [13][14][15][16], but there has not been much discussion of the correlation of thermal stability with mechanical properties. Mechanical properties of iron-based amorphous alloys [17,18] have been studied in some detail lately, but there have been very few studies that discuss the correlation of microstructure or phase composition of these alloys with their mechanical properties.…”