Formation and friction behavior of plasma electrolytically nitrocarburized surface layers on Q235 steel

Absorption and transition of compounds on the surface of Q235 were investigated in the plasma electrolytic nitrocarburizing (PEN/C) in an aqueous solution containing triethylamine, glycerol and sodium bicarbonate for 5–15 min. Raman spectroscopy and Fourier transforms infrared spectrometer (FTIR) were used to characterize the evolution of compounds. Scanning electronic microscopy (SEM) was used to test surface morphology of Q235. It is indicated...