Surface modification of AISI-420 steel by cathodic cage plasma niobium nitride deposition. - Naeem, M; Raja, Faryal Qamar; Nolêto, B J S; Serra, P L C; Costa, T H C; Díaz-Guillén, J C; Hdz-García, H M; Iqbal, Javed; Sousa, R R M (Materials Science & Technology, 2024)