Procjena učinkovitosti nekonvencionalnog nitriranja austenitnog čelika 316L

The 316L grade austenitic steel after glow discharge nitriding at a temperature of T=733 K for a duration of τ = 61,2 ks and four different variants of specimen arrangement in the glow-discharge chamber was investigated. In order to assess the effectiveness of nitriding process variants, the profile analysis examination of obtained surface layers, surface hardness tests and surface layer hardness profile examination, the analysis of surface layer structures and abrasive wear were performed. It has been found that an application of the booster screens causes depth increase of the nitrogen diffusion into the nitrided 316L austenitic steel and thus an increase of the obtained surface layers thickness.Istraživani su uzorci austenitnog čelika stupnja 316L sa 4 različita postupka u komori za nitriranje na temperaturi T=733 K u trajanju τ =61,2 ks. Za procjenu učinkovitosti varijanti nitriranja provedena je analiza profila površinskog sloja, njegove tvrdoće kao i tvrdoće profila, površinske strukture te abrazijsko trošenje. Ustanovljeni su uzroci pojačane podrške i povećanje dubine difuzije u površini austenitnog čelika 316L pri nitriranju, te povećanje debljine nitriranog površinskog sloja