RT info:eu-repo/semantics/article
T1 Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steels
A1 García Cabezón, Ana Cristina
A1 Martín Pedrosa, Fernando
A1 Blanco Val, María Yolanda
A1 López Aparicio, Manuel Federico
K1 Stainless steel
K1 Polarization
K1 Intergranular corrosion
K1 Repassivation
AB The influence of ageing heat treatments (675 and 875 °C for 1.5 to 48 h) on the microstructure and intergranular corrosion resistance of sintered in nitrogen duplex stainless steels was investigated. The materials were obtained by sintering mixtures of austenitic AISI 316L and ferritic AISI 430L powders. Corrosion behaviour was evaluated by using electrochemical techniques. The beneficial effect of nitrogen on corrosion behaviour of solution annealed samples was established. During ageing, secondary phases were precipitated and the intergranular and transgranular corrosion resistance significantly decreased though repassivation was observed in specimens aged at 875 °C for times up to 8 h.
PB ELSERVIER
SN 0010-938
YR 2010
FD 2010
LK http://uvadoc.uva.es/handle/10324/21905
UL http://uvadoc.uva.es/handle/10324/21905
LA eng
NO Corrosion Science  2010, 52, 3725–3737
DS UVaDOC
RD 24-abr-2024