“The Importance of Nitrogen in the Heat Treating of Ferrous and Non-Ferrous Metals and Alloys”. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science 42, no. 1 (March 15, 2019): 31–35. Accessed November 2, 2026. https://ojs.ugal.ro/index.php/mms/article/view/2768.