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Título: Effect of ageing heat treatments on the microstructure and intergranular corrosion of powder metallurgy duplex stainless steels
Autor: García Cabezón, Cristina
Martín Pedrosa, Fernando
Blanco Val, Yolanda
Lopez Aparicio, Manuel
Año del Documento: 2010
Editorial: ELSERVIER
Documento Fuente: Corrosion Science 2010, 52, 3725–3737
Resumen: 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.
Materias (normalizadas): Stainless steel
Polarization
Intergranular corrosion
Repassivation
ISSN: 0010-938
Revisión por Pares: SI
DOI: http://dx.doi.org/10.1016/j.corsci.2010.07.023
Patrocinador: Ministerio de Ciencia e Innovación, Dirección General de Programas y Transferencia de Conocimiento, Proyectos I+D, MAT2008-02788
Propietario de los Derechos: ELSERVIER
Idioma: eng
URI: http://uvadoc.uva.es/handle/10324/21905
Derechos: info:eu-repo/semantics/embargoedAccess
Aparece en las colecciones:DEP07 - Artículos de revista

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