MII-Tema_7.Aceros - TEMA 7 ACEROS DE BAJA ALEACIN...

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UC3M – Dpto. Materiales Materiales II – Aceros de baja aleación 7-1 TEMA 7 . – ACEROS DE BAJA ALEACIÓN Cuestiones a tratar: Definición y clasificación Designación Aceros de bajo, medio y alto C Aceros microaleados Aceros de fase dual
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UC3M – Dpto. Materiales Materiales II – Aceros de baja aleación 7-2 CLASIFICACIÓN Baja aleación : contenido en aleantes 5 % - Bajo C barb2right 0.1 - 0.25 % C - Medio C barb2right 0.25 - 0.55%C - Alto C barb2right 0.6 - 1.2 % C DESIGNACIÓN AISI: American Iron and Steel Institute SAE: Society of Automotive Engineers AISI/SAE UNE Aceros al Carbono 1 040 F1140 Acero con 0.4 %C 1xYY F11YY Acero al carbono modificado (S, P, Mn) Aceros de baja aleación 2 xxx F2xxx Aceros aleados Elemento de aleación ppal. Cantidad del elemento de aleación ppal. Contenido en C x 100. Ej. 2335: acero al Ni, 3 % Ni, 0,35 % C
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UC3M – Dpto. Materiales Materiales II – Aceros de baja aleación 7-3 0.1 - 0.25 % C Ferrita proeutectoide + Perlita (pequeñas cantidades) Alta conformabilidad, alta ductilidad: elongación: ~30%
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