Caracterización microestructural y propiedades mecánicas de aceros HSLA en estado de suministro y después de tratamiento térmico de revenido
No Thumbnail Available
Date
2024-04
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad Nacional de Trujillo
Abstract
La presente investigación, estudia la tenacidad, dureza, microdureza y microestructura de un acero de alta resistencia y baja aleación, tanto en su estado original y posterior a un tratamiento térmico de revenido, a temperaturas de: 400 °C, 500 °C, y 620 °C. Se realizaron ensayos al doblado por impacto tipo Charpy V para medir la tenacidad. Así mismo se realizaron ensayos de dureza en sección A y transversal a la sección A; microdurezas y análisis de las microestructuras. Los resultados marcaron que el acero en estudio es anisotrópico referente a dureza y respecto a los resultados obtenidos tanto de dureza, microdureza y tenacidad; identifican un acero de alta resistencia y baja aleación en transición a un acero de tipo estructural, esto se corrobora con las micrografías correspondientes que refleja una matriz ferrítica.
This research examines the toughness, hardness, microhardness, and microstructure of a highstrength, low-alloy steel, both in its original state and following a tempering heat treatment at temperatures of 400 °C, 500 °C, and 620 °C. Charpy V-notch impact bending tests were conducted to measure toughness. Hardness tests were also performed on both cross-sectional and transverse specimens of section A, along with microhardness tests and analysis of microstructures. The results indicate that the steel under investigation exhibits anisotropic behavior concerning hardness. Moreover, the findings from hardness, microhardness, and toughness tests identify it as a high-strength, low-alloy steel transitioning towards a structuraltype steel. This is corroborated by corresponding micrographs that reflect a ferritic matrix.
This research examines the toughness, hardness, microhardness, and microstructure of a highstrength, low-alloy steel, both in its original state and following a tempering heat treatment at temperatures of 400 °C, 500 °C, and 620 °C. Charpy V-notch impact bending tests were conducted to measure toughness. Hardness tests were also performed on both cross-sectional and transverse specimens of section A, along with microhardness tests and analysis of microstructures. The results indicate that the steel under investigation exhibits anisotropic behavior concerning hardness. Moreover, the findings from hardness, microhardness, and toughness tests identify it as a high-strength, low-alloy steel transitioning towards a structuraltype steel. This is corroborated by corresponding micrographs that reflect a ferritic matrix.
Description
Keywords
TECHNOLOGY::Chemical engineering::Metallurgical process and manufacturing engineering::Metallurgical process engineering