Estudio de los cambios microestructurales en probetas de acero A36 galvanizadas y enfriadas en distintos medios con ensayo posterior de corrosión acelerada: “estudio de los cambios microestructurales en probetas de acero A36 galvanizadas y enfriadas en aceite”.

Abstract

This project is based on 4 fundamental aspects described below: A brief summary of the existing theory of zinc and its uses in Latin America, with a projection for years to come. Furthermore, the main industrial use of zinc is explained, which is galvanizing; detailing its stages, the materials suitable for the process and the phases present in the Fe – Zn alloy, with a theoretical basis given by specialized bibliography in the study of galvanizing and current research work. No less important, a review of the existing types of corrosion is made, from which the application of hot-dip galvanizing is derived. The experimental method is used for the present work. First, steel samples are extracted from an ASTM A-36 plate, which is cut by water jet and galvanizing the samples obtained. For cooling, it was changed from conventional cooling to one with used oil. The respective tests detailed in this work will be carried out (characterization, metallography, micro hardness, pull off and appearance), which will verify the surface and microstructural state of the galvanized layer on the steel. The results obtained will be analyzed, verified and compared with the existing bibliography and works carried out experimentally, to obtain percentage values of variation of the results presented, with those shown in the exposed bibliography. Finally, conclusions and recommendations of the case are included, for future works in the short or long term from the present.