Structural Evolution in Wet Mechanically Alloyed Co-Fe-(Ta,W)-B Alloys

In the present study, effect of wet mechanical alloying (MA) on glass-forming ability (GFA) Co43Fe20X5.5B31.5 (X = Ta, W) alloys was studied. The structural evolution during MA investigated using high-energy X-ray diffraction, absorption spectroscopy, high-resolution transmission electron microscopy and magnetic measurements. Pair distribution function extended fine structure spectroscopy were used to characterize local atomic at various stages MA. Besides changes, properties both compositions employing a vibrating sample magnetometer thermomagnetic It shown that hexane as process control agent resulted in formation fully amorphous Co-Fe-Ta-B powder material shorter milling time (100 h) compared dry has also been substituting Ta with W effectively suppresses GFA. After 100 h Co-Fe-W-B mixture, nanocomposite consisting nanocrystalline bcc-W phase synthesized.