Морфология и механические свойства микропроводов PrDyFeCoB

Abstract

PrDyFeCoB microwires were obtained by pendant drop melt extraction (PDME). The diameter and cylindricality of microwires are controlled by the rotation speed of the cooling cylinder and depend on the solidification time of the drop on it. Variations in the cooling regime of the melt drop lead to a change in the shape of the cross section from a completely cylindrical to a semicircle, a crescent, and an almost flat plate. It was established that the cooling mode affects not only morphology, but also mechanical characteristics that are different for microwires of different shapes, and also changes the microhardness and Young's modulus of different surfaces of the same microwire.