Analysis of the nanocrystallization of Finemet type alloy by temperature-modulated differential scanning calorimetry

Phase transformations of Fe73.5Cu1Nb3Si15.5B7 amorphous alloy upon thermal treatment

“…As the amorphous sample undergoes structural transformations during heating, a broad exothermic maximum in the range 350-550 K is attributed to the structural relaxation processes in as-prepared amorphous alloy. This process is followed by the Curie temperature and the glass transition temperature [21,22]. The process of crystallization involves three well-defined broad asymmetric exothermic peaks (T k1 , T k2 and T k3 ) indicating a stepwise process of the structural transformation of the alloy in the broad temperature range from 750 to 1000 K. During these structure transformations the system moves from as-deposited amorphous alloy of higher excess free energy to the annealed sample exhibiting a lower excess of free energy.…”

Effect of irreversible structural relaxation on the electrochemical behavior of Fe78−xSi13B9Cr(x=3,4,7) amorphous alloys

“…The change in T c with annealing for Fe 78Àx Si 13 B 9 Cr ðx¼3;4;7Þ is also included in Table 1. flow [19]. The total, reversing and non-reversing heat flow for the MDSC experiment of Fe 75 Si 13 B 9 Cr 3 amorphous alloy, are plotted in Fig.…”

Exceptionally High Saturation Magnetic Flux Density and Ultralow Coercivity via an Amorphous–Nanocrystalline Transitional Microstructure in an FeCo‐Based Alloy

“…To highlight the exceptional high B s of (Fe 0.8 Co 0.2 ) 85 ANT alloy, we collected the existing data of Fe‐based nanocrystalline alloys (FINEMET‐type, NANOPERM‐type, HITPERM‐type, Fe‐(BSiPC)‐Cu‐type, Fe‐(BSiPC)‐type) and typical silicon steels previously reported, [ 9,11,19,27–31,40–56 ] and present these data with the mass fraction of ferromagnetic elements ( Figure a). Normally, increasing ferromagnetic element content results in higher B s and inferior GFA.…”

“…Summary of the excellent soft magnetic properties (e.g., B s and H c ) and thermal characteristic parameters of typical Fe‐based nanocrystalline alloys. [ 9,11,19,27–31,40–56 ] a) Variation of B s and GFA with the mass fraction of ferromagnetic element for FINEMET‐type, NANOPERM‐type, HITPERM‐type, Fe‐(BSiPC)‐Cu‐type, Fe‐(BSiPC)‐type nanocrystalline alloys, and typical silicon steels. b) Relation between maximum B s and H c value for FINEMET‐type, NANOPERM‐type, HITPERM‐type, other Cu‐free, and other Cu‐doped nanocrystalline alloys.…”