Hardened AISI 4140 Steel Subjected to Hydrogen

Analysis of surface on machinery grade steel Boriding

“…The AISI 9254 steel is used in industrial applications in machine building parts, plastic molds and zinc casting dies. Because the current conditions of use on steel and the need to improve its mechanical properties, surface treatments have been carried to extend the service life of the parts manufactured on this steel [1,2]; Therefore, thermochemical treatment is a surface modification alternative with the intention of obtaining a FeB/Fe 2 B bilayer and/or FE 2 B monolayer, in order to contribute with quantitative and qualitative properties for possible industrial applications [3,4,5,6]. Thus, this work reports the boriding process by dehydrated paste, in addition to the microstructural characterization and the mechanical property of hardness on the surface of the substrate exposed surface processing.…”