THERMOCHEMICAL TREATMENT OF STEELS

U ovome radu teorijski su obrađeni postupci termokemijske obrade čelika: cementiranje, karbonitriranje, nitriranje, nitrokarburiranje i boriranje i njihova primjena i svojstva čelika nakon termokemijske obrade. Teorijska analiza ovih postupaka obrade pokazala je da se svakim postupkom postižu specifična svojstava površinskog sloja čelika. Najkvalitetnija svojstva čelika postižu se boriranjem. Boriranjem je moguće produljiti radni vijek strojnih elemenata za 3 do 10 puta. Zbog toga boriranje je u mnogim primjenama zamijenilo postupke cementiranja, nitriranja i nitrokarburiranja.In In this paper the processes of thermochemical steel processing: carburizing, carbonitriding, nitriding, nitrocarburizing and boriding and their application and steel properties after thermochemical treatment have been theoretically processed. Theoretical analysis of these processing methods has shown that each process achieves specific properties of surface layer of steel. The highest quality steel properties are achieved by boriding. Boriding can extend the working life of machine elements by 3 to 10 times. because of that, in many applications, boriding has replaced carburizing, nitriding and nitrocarburizing