“Laser Surface Hardening of 51CrV4 Steel” (2005) The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 28(2), pp. 5–10. Available at: https://ojs.ugal.ro/index.php/mms/article/view/3242 (Accessed: 2 November 2026).