A evolução da microestrutura, propriedades mecânicas e textura cristalográfica na fabricação do vergalhão CA-60

Abstract

Steel is a material present in various sectors of the current economy. Its use ranges from the industrial sector, such as the automotive, to the food sector, such as packaging. There are different metalworking processes for shaping and matching the alloy’s properties to the application needs, such as drawing and cold rolling. Although the two methods have the same purpose of increasing resistance, there are differences between them that influence the final product. This work uses wire rod of 5.5mm diameter of low carbon steel comparing drawing and cold rolling in terms of mechanical tests and microstructure for the production of CA-60 bars of diameter 4,2mm and evolution of the crystallographic texture between the passes of the processes. At the end of the tests, the rolled products showed higher results in the tensile tests, the microstructure demonstrated the stretching of the grains on the surface and the two methods presented texture in the same final directions with different intensities.