Estudio de los cambios microestructurales en probetas de acero A36 galvanizadas y enfriadas en distintos medios con ensayo posterior de corrosión acelerada : estudio de corrosión en probetas de acero a36 galvanizadas y enfriadas en una solución de alcohol con hielo seco.

Abstract

The present research is about microstructural behavior on A36 steel specimen cooled in alcohol solution with dry ice, it starts with a brief introduction of galvanized history in Ecuador, standards under which this process is carried out, also a description of “structural steel A36” that will be the base material used, coating types with emphasis on hot-dip galvanizing, then there exist an analysis of corrosion types and finally, the way galvanizing provide protection. For compliance with aims, it executes several mechanical and metallurgical testing to on ASTM A36 sheet specimens to characterize them without being galvanized, other specimens are galvanized in a local company and metallurgical tested, in order to find their thickness and intermetallic layers, later they are subjected to an accelerated corrosion process for their subsequent analysis. Once the result of each test, its performance a thorough analysis and conclude how different cooling types influence the process and if it promotes prevention of corrosion. Additionally includes recommendations for being used in further investigations.