Low core losses of nanocrystalline Fe47Ni23Ti10B20 alloys

Today, large amounts of energy are lost in electric power industry while distribution system has a large portion of losses by the use of transformers which turn energy to heat. Hence finding a way for reducing losses is very important both economically and technically. Using nanostructured alloys is an efficient method to have low losses in transformer cores. In this study, structural and magnetic properties of mechanically alloyed nanostructured Fe47Ni23Ti10B20 powders as a transformer core material is investigated. Th e compound prepared by mechanical alloying method while process continued to 120 h. Structural and magnetic properties of alloy studied by XRD, SEM and VSM. It is shown that the crystallite size is rapidly and continuously decreases as well as increase in lattice strain up to 120 h. Lowest value of coercivity is achieved to about 33 Oe for the alloyed sample at 48 h. On the other hand highest value of magnetic saturation is achieved by 68 h alloying. Generally by 48 hours milling time the appropriate magnetic material was achieved.