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Author: search.filters.author.Quintana Hernández, María José

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    Item type:Publication,
    Ultrafine-grain Steels: Mechanical Behavior
    (2016)
    Quintana Hernández, María José
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    ;
    MARÍA JOSÉ QUINTANA HERNÁNDEZ;576914
    In recent years, both the steelmaking industry and laboratories in different parts of the world, have shown an increasing interest in reaching an industrial-level production of ultrafine grained steels (also known as ultrafine ferrite), which have a grain size d lower than 5 μm, and enhanced mechanical resistance and fracture toughness. At room temperature, the capacity of the material to be deformed during bending or drawing operations (typical of requirements for automotive parts applications) depends on the interaction of a hard and a soft phase in the microstructure. On the other hand, at high temperatures, these steels may show superplastic behavior if deformed at a precise combination of temperature and strain rate.
      17
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    Item type:Publication,
    Caracterización mecánica y microestructural del acero inoxidable tipo 304 a temperatura elevada
    (2010)
    Quintana Hernández, María José
    ;
    MARÍA JOSÉ QUINTANA HERNÁNDEZ;576914
    ;
    Gonzalez-Ojeda, Roberto
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    Campus Ciudad de México
    La investigación que se presenta en esta tesis consiste en la caracterización del comportamiento del acero inoxidable tipo 304 a temperatura elevada. Se realizaron pruebas de dilatación térmica, tratamientos térmicos y ensayos de tracción a temperatura elevada, para posteriormente, obtener muestras en distintos sentidos de corte y en distintos lugares de las probetas, mediante preparación de muestras para análisis microestructural y observación de fenómenos como son las maclas, las bandas, entre otros.
      36  123