RT info:eu-repo/semantics/article
T1 Abnormal magnetic behaviour of powder metallurgy austenitic stainless steels sintered in nitrogen
A1 García Cabezón, Ana Cristina
A1 Martín Pedrosa, Fernando
A1 Blanco Val, María Yolanda
K1 Magnetic measurement
K1 Powder metallurgy
K1 Austenitic stainless steel
AB The magnetic response of AISI 304L and AISI 316L obtained through powder metallurgy and sintered in nitrogen were studied. AISI 304L sintered in nitrogen showed a ferromagnetic behaviour in as-sintered state while AISI 316L was paramagnetic. After solution annealing both were paramagnetic. Magnetic behaviour was analysed by using a vibrating sample magnetometer, a magnetic ferritscope and magnetic etching. A microstructural characterization was performed by means of optical metallography, X-ray diffraction, scanning electron microscopy (SEM) and energy dispersive analysis of X-rays (EDS). Some samples when needed were submitted to aged heat treatments at 675 and 875 °C for 90 min, 4, 6, 8 or 48 h. The main microstructural feature found was the presence of a lamellar constituent formed by nitride precipitates and an interlamellar matrix of austenite and/or ferrite. The abnormal magnetic response was explained based on this.
PB ELSERVIER
SN 0304-8853
YR 2009
FD 2009
LK http://uvadoc.uva.es/handle/10324/21910
UL http://uvadoc.uva.es/handle/10324/21910
LA eng
NO Journal of Magnetism and Magnetic Materials 2009, 321, 3171–3177
DS UVaDOC
RD 27-dic-2024