Browsing by Author "Yépez Intriago, Ambar Carolina"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Estudio de recubrimientos anticorrosivos aplicados sobre acero A-36 y su incidencia en la tasa de corrosión utilizando la cámara de niebla salina
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2017-08) Yépez Intriago, Ambar Carolina; Vaca Ortega, Wilson Henry
    The study of the coatings in carbon steel A-36, and its incidence in the corrosion rate using the chamber of salt spray, for which three types of organic coatings were chosen, and their anticorrosive behavior was studied. In addition to this, the effect of the initial cleaning rates prior to the application of the coatings was studied. The test was performed according to ASTM B117, which establishes the parameters necessary to perform the accelerated corrosion test in a salt spray chamber, in addition to the necessary laboratory controls that prove the test. The corrosion rate was calculated according to ASTM G1, and the coatings will be purchased to establish which is the best protection. Additionally, the degree of corrosion of the coatings was established by visual inspection according to ASTM D610. The best corrosion protection methods for A-36 carbon steel were established
  • No Thumbnail Available
    Item
    Modelo numérico de formación de cordón y distribución de calor en la soldadura de pases de revenido para el proceso de reparación de un rodete tipo PELTON
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Mecánica Mención Manufactura, 2021-06) Yépez Intriago, Ambar Carolina; Vaca Ortega, Wilson Henry
    The present research work is based on the calculation of the temperature inherent to the welding cycle of the Pass Pass Reheat, a process used for the recovery of Pelton Impellers. This temperature established by the welding parameters such as voltage, amperage and travel speed are crucial for the thermally affected zone, which can change its microstructure and increase its hardness. Four experiments have been carried out in which the welding parameters were combined, and the temperature and hardness were calculated. The hardness was checked by testing and the temperature was checked by finite element analysis software. By means of calculations, computational modeling and experimentation, it was determined that the microstructure obtained in the HAZ is tempered martensite, and that the hardness value is similar to that of the base material, providing functionality to the impeller. Additionally, a temperature comparison was performed to confirm that the analysis point is far from the welding source.