Original 1CP powder was studied and it was founded that powder material partially consists of the amorphous phase, in which crystallization begins at 450 °C and ends at 575 °C. Selective laser melting parameters were investigated through the track study, and more suitable ones were found: laser power = 90, 120 W; scanning speed = 1200 mm/s. Crack-free columnar elements were obtained. The sample obtained with = 90 W, contains a small amount of amorphous phase. X-ray diffraction of samples shows the presence of α-Fe(Si) and FeB. SEM-image analysis shows the presence of ordered FeSi in both samples. Annealed samples show 40% less microhardness; an annealed sample containing amorphous phase shows higher soft-magnetic properties: 2.5% higher saturation magnetization, 35% higher residual magnetization and 30% higher rectangularity coefficient.
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| http://dx.doi.org/10.3390/ma15124121 | DOI Listing |
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