Effect of P substitution for Nb on structure and soft magnetic properties of Si-rich FeCuNbSiB nanocrystalline alloys

Autor: Yurong Jia, Li-juan Li, Ye Han, Fang Wang, Zhong-yan Xie, Li Zhang, Zhi Wang
Rok vydání: 2017
Předmět:
Zdroj: Materials Science and Engineering: B. 222:55-59
ISSN: 0921-5107
DOI: 10.1016/j.mseb.2017.04.007
Popis: Soft magnetic Fe74.5Cu1Nb2−xSi17.5B5Px (x = 0, 1, 2) amorphous alloys were obtained by the single roller melt spinning method. The Curie temperature of amorphous Fe74.5Cu1Nb2−xSi17.5B5Px (x = 0, 1, 2) alloys increases from 355 °C to 400 °C as the x increases from 0 to 2. Substitution of Nb by P can reduce the primary crystallization temperature. All the annealed Fe74.5Cu1Nb1Si17.5B5P1 alloys show higher permeability, in which the 570 °C annealed sample exhibits an improved high temperature magnetic softness. When P replaces Nb completely, the optimal range of annealing temperature is reduced and the soft magnetic properties are deteriorated at elevated temperatures. The mechanism for improving soft magnetic properties at room- and high-temperatures is interpreted in terms of anisotropy and saturation magnetization.
Databáze: OpenAIRE