Zuno-Silva, J., Ortiz-Domínguez, M., Simón-Marmolejo, I., Martínez-Martínez, L. E., Flores-Rentería, M. A., Arenas-Flores, A. and Cruz-Avilés, A., (2018). The Powder-pack Boriding Process: A Microstructure Comparison of Boride Layers Formed on AISI 4150 and M2 Steels, Microscopy and microanalysis, 24(1); 1054-1055.
Boriding is a thermochemical treatment in which boron atoms are diffused into the surface of a workpiece and form borides with the base metal. One basic advantage is that iron boride layers have extremely high hardness values (between 1600 and 2000 HV) . The combination of a high surface hardness and a low surface coefficient of friction of the borided layer also makes a significant contribution in combating the main wear mechanisms: adhesion, tribooxidacion, abrasion, and surface fatigue [2-5]. In this study, the microstructure of the single phase layer (Fe2B) and the double phase layer (FeB + Fe2B) have been investigated at different temperatures by the powder-pack method on the surface of AISI 4150 and AISI M2 steel.