Análise da microestrutura de um aço SAE 1010 e um aço SAE 1020 após tratamento de boretação

Abstract

The surface engeneering search how to improve new propreties into the specimen, being able to modify superficially and chemically th materials. Fo that, exist a variety of treatments such as thermo-chemical, for example: nitriding, cementation, carbonitriding, boriding and others. The main point of this work is to analyze on the microstructure of SAE 1010 and SAE 1020 steels after the boriding treatment.The process occured at temperatures of 1100◦C for all the samples with dwell time of 60 and 120 minutes. The samples were characterized throught techniques of optcial microscopy, scanning electron microscopy, microhardness an X-ray diffraction. Based on the results, there wasn’t any bored layers because the treatment was not realized in a inert atmosphere, when analysing the treatment’s residue, noticed that a ceramic layer was formed above the steel which prevented the boron diffusion through the steel surface in the samples.