Processing soft ferromagnetic metallic glasses: on novel cooling strategies in gas atomization, hydrogen enhancement, and consolidation
N. Ciftcia, N. Yodoshib, S. Armstronga,c, L. Mädlera,c, V. Uhlenwinkela,c,*()

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Fig. 5.. Enthalpy of crystallization describing the amorphous fraction as a function of particle diameter. (a) {(Fe0.6Co0.4)0.75B0.2Si0.05}96Nb4 and (b) Fe76B10Si9P5 soft ferromagnetic glass-forming alloys were considered for gas atomization with conventional cooling and the different cooling strategies. The {(Fe0.6Co0.4)0.75B0.2Si0.05}96Nb4 alloy was additionally quenched in poly(ethylene glycol) (PEG). The horizontal error bars represent the d16,3 and d84,3 percentiles measured by particle laser diffraction. Measurements on melt spinning (MS) samples were also plotted for comparison. The dashed line refers to the average enthalpy of crystallization and the upper and lower edges of the orange area defines the upper and lower standard deviation. The abbreviations GA, GA + SCC, and GA + LQ stand for conventional gas atomization, conventional gas atomization and spray cone cooling, and conventional gas atomization and liquid quenching, respectively (see Fig. 1).