Fig. 12

Gas nitriding at 1050 °C for 5 min in solar furnace. (a) sample S12 after nitriding in SF, (b) cross-section microstructure from LOM on top part of the sample, (c) SEM image on the top part of S12 sample, (d,e) line scan SEM–EDS analysis on the top of S12 sample cross-section.