Temperature dependence of magnetization for AISI 201 steel for (a) as-received condition with an applied field H 90 Oe (H//RD) and (b) 60% cold-rolled with H 115 Oe (H//RD). In both (a) and (b) figures two M(T) curves are displayed.
They correspond to the sample taken without and with deep etching in aqua regia after cutting, respectively. The insets show the correspondent dM(T)/dT curves in function of temperature. (For interpretation of the references to color in this figure,
the reader is referred to the web version of this article.)