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Caracterização magnética de aço com a superfície endurecida
(2014-06-03)
This work investigates the magnetic properties (hysteresis loop and Barkhausen noise) in some steels (ABNT 1045, 1050 and 1548) whose surfaces had been hardened by induction. The goal was to develop a non-destructive test ...
Estudo das propriedades magnéticas e estruturais de (Nd, Pr) FeB nanocristalino com adição de TiC e Cr
(2014-05-30)
The addition of both Ti and Cr-C refine the grains in nanocomposites of Nd-Fe-B, increasing substantially the coercive field Hc . This motived our investigation of the effect of the addition of Ti-C and Cr to nanocomposites ...