Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
EVALUATION OF THE APPLICATION OF BORON-BASED COATINGS ON AISI 1020 STEEL BY SMAW
Submission Author:
Edilson Pollnow , RS , Brazil
Co-Authors:
Edilson Pollnow, Alan Artigas Barbosa , Hugo Silva Comisso
Presenter: Edilson Pollnow
doi://10.26678/ABCM.COBEM2023.COB2023-2274
Abstract
The application of hard coatings by engineering has significantly improved the life cycle of parts and equipment in the metal-mechanical industry. Its main advantage is increased wear resistance. Several welding processes are capable of producing these types of coatings. One of these is the SMAW process, characterized by being portable, low-cost, and highly versatile. Based on this, this study sought to combine surface engineering with welding engineering in an attempt to obtain a boron-rich coating through SMAW welding deposition. This research consisted of first carrying out a dilution test to obtain an initial parameterization. In sequence, four AISI 1020 steel sheets were cut, cleaned and four 1 mm deep channels were produced on them. To these was added a powdered agent containing boron. The addition of this agent was intended to increase the surface hardness of the samples and make them resistant to abrasive wear. Subsequently, welding was carried out with currents of 60 and 80 A. To characterize the coatings, visual characterizations were carried out through the liquid penetrant test and microstructural characteristics through optical microscopy. The results pointed to an inability to produce boron-based coatings using SMAW, due to the high presence of porosities and cracks, resulting from segregation problems during solidification.
Keywords
Welding SMAW, boron, Coatings
