“Surface hardening for 38MoCrAl09 steel using fluidized bed nitriding” (2008) The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 31(1), pp. 98–102. Available at: https://ojs.ugal.ro/index.php/mms/article/view/3133 (Accessed: 2 November 2026).