The Effect of Niobium Content on the Curie Temperature and Microstructure of the Pr14Fe79.9-xCo16B6Nbx Alloys

L. P. Barbosa; Hidetoshi Takiishi; R.N. Faria; Daniel Rodrigues; S.R. Janasi; A. Stranguetti

doi:10.4028/www.scientific.net/MSF.591-593.102

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The Effect of Niobium Content on the Curie Temperature and Microstructure of the Pr₁₄Fe_79.9-xCo₁₆B₆Nb_x Alloys

Abstract:

This study reports the results of investigations carried out to determine the Curie temperature (Tc) of various homogenized praseodymium-based alloys represented by the formula: Pr14Fe79.9-xCo16B6Nbx (where x = 0, 0.01, 0.05, 0.1, 0.15, 0.50). The influence of niobium content on the microstructure of these alloys has investigated. The Curie temperature decreased about 3 °C for x = 0.5 at. %. It has been observed a remarkable grain refinement on the microstructure of the Pr14Fe79.8Co16B6Nb0.1 alloy when compared to the niobium-free alloy (x = 0 at. %).