Research Article

Cathodic Cage Plasma Nitriding: An Innovative Technique

Figure 5

Micrographs of AISI 316, 1020, and 420 steel treated by (a) conventional nitriding and (b) cathodic cage plasma nitriding. The pressure used was 250 Pa, during 5 h (3 h for 1020), at 673 K with 80% N2-20% H2 mixture.
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