In the literature there are many paper about carbon concentration profiles obtained using the glow discharge apparatus and compared with the similar date for vacuum and gas carburizing. The published results showed that plasma carburising compares favourably with the alternative methods. This paper provides compared information and results of the investigation of the carbon layer gradient obtained by pack carburization of the 20MnCrB5 steel for carburization in the comparison with carbon

more »

... ration profiles obtained by plasma carburization process of the similar steel and date, published in the literature. The results obtained and the conclusions drawn from this investigations address the topic of the diffusion process of the carbon through the steel as limiting factor of carburization.