{"id":129854,"date":"1996-01-01T00:00:00","date_gmt":"1996-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/fragilizacion-por-envejecimiento-a-baja-temperatura-en-aceros-inoxidables-austenoferriticos\/"},"modified":"1996-01-01T00:00:00","modified_gmt":"1996-01-01T00:00:00","slug":"fragilizacion-por-envejecimiento-a-baja-temperatura-en-aceros-inoxidables-austenoferriticos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/fragilizacion-por-envejecimiento-a-baja-temperatura-en-aceros-inoxidables-austenoferriticos\/","title":{"rendered":"Fragilizacion por envejecimiento a baja temperatura en aceros inoxidables austenoferriticos."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Luciano Sanchez Aramburu <\/strong><\/h2>\n<p>Los aceros inoxidables austenoferriticos (duplex) son aleaciones ferreas que poseen buenas propiedades mecanicas y de resistencia a la corrosion. Sin embargo estos aceros presentan un problema de envejecimiento a baja temperatura (280-400. C) debido a una serie de fenomenos de evolucion microestructural que endurecen la ferrita y como consecuencia de ello se produce una fragilizacion global del material.  en esta tesis se ha llevado a cabo un estudio de la evolucion con el envejecimiento de la dureza de la ferrita, la tenacidad al impacto y la tenacidad a fractura de tres aceros austenoferiticos de especificacon cf8m con diferentes contenidos en ferrita, envejecidos durante tiempos comprendidos entre 300 y 23650 horas.  de los resultados obtenidos se ha desarrollado un modelo de envejecimiento basado en la evolucion de la dureza de la ferrita, y dos modelos de fragilizacion, uno para la tenacidad a impacto y otro para la tenacidad a fractura, desarrollados a partir del modelo del envejecimiento y teniendo en cuenta el efecto de la ferrita envejecida en los procesos de rotura.  por ultimo, a partir de estos modelos se ha desarrollado un metodo de prevision de la tenacidad de un acero duplex a partir de la composicion quimica del mismo y de su comportamiento mecanico en origen que sera de aplicacion al dise\u00f1o y a la seguridad de componentes.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Fragilizacion por envejecimiento a baja temperatura en aceros inoxidables austenoferriticos.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Fragilizacion por envejecimiento a baja temperatura en aceros inoxidables austenoferriticos. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Luciano Sanchez Aramburu <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Cantabria<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1996<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Federico Gutierrez Solana Salcedo<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Arturo Dom\u00ednguez Rodr\u00edguez <\/li>\n<li>Luis Caballero Molano (vocal)<\/li>\n<li>Marcos Juan Anglada Gomila (vocal)<\/li>\n<li>Isabel Gutierrez Sanz (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Luciano Sanchez Aramburu Los aceros inoxidables austenoferriticos (duplex) son aleaciones ferreas que poseen buenas propiedades mecanicas y [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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