The present work shows AISI-SAE 1020 steel’s nitrocarbide layer’s microstructure and micro-hardness profile following 4 hours at 700°C using methanol, isopropanol and triethanolamine. The steel was then hardened by quenching it in water and then tempered at 350°C for 1 hour. Its surface had been partially oxidized by heating it at 400°C for 1 hour. An example is given of other researchers analyzing microstructure and properties in steel having 0.5% C, using endothermic gas and different amounts of ammoniac.
