{"id":6939,"date":"1995-01-01T00:00:00","date_gmt":"1995-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1995\/01\/01\/aceros-microaleados-soldables-para-plataformas-marinas-articas\/"},"modified":"1995-01-01T00:00:00","modified_gmt":"1995-01-01T00:00:00","slug":"aceros-microaleados-soldables-para-plataformas-marinas-articas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/aceros-microaleados-soldables-para-plataformas-marinas-articas\/","title":{"rendered":"Aceros microaleados soldables para plataformas marinas articas"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Rosalba Guerrero Aslla <\/strong><\/h2>\n<p>En este trabajo se recogen las caracteristicas de fabricacion, por laminacion controlada en caliente o normalizado, de aceros de 300 y 420 mpa de limite elastico y temperaturas de transicion inferiores a -60c (los normalizados) y -80c (los laminados controladamente, microaleados con nb v o nb, que hacen posible su empleo en regiones frias o articas, superando holgadamente los valores minimos exigidos por la especificacion api 2w. Se analiza pormenorizadamente la relacion estructura-propiedades, demostrandose la benefica influencia del afino de grano ferritico, logrado por el tratamiento termico o termomecanico; del endurecimiento estructural, por precipitacion nanometrica de carburos y carbonitruros de niobio; y de la estructura en bandas ferrito-perlitica, con ausencia de constituyentes de no equilibrio (bainita, martensita). Se destaca el importante papel que juega el grado de foria en la atenuacion y\/o eliminacion de la heterogeneidad quimica consecuencia de la solidificacion de no equilibrio, que podria repercutir de modo particularmente negatico en la tenacidad de los aceros investigados.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Aceros microaleados soldables para plataformas marinas articas<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Aceros microaleados soldables para plataformas marinas articas <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Rosalba Guerrero Aslla <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Oviedo<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1995<\/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>Juan Asensio Lozano<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Pero Sanz Elorz Jos\u00e9 Antonio <\/li>\n<li> Urcola Galarza Jos\u00e9 Javier (vocal)<\/li>\n<li>Benjamin Fernandez Martinez (vocal)<\/li>\n<li>Gonzalo Fernandez Cabal (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Rosalba Guerrero Aslla En este trabajo se recogen las caracteristicas de fabricacion, por laminacion controlada en caliente [&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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