Machev, V. and Georgiev, V. 2026. NON-DESTRUCTIVE EVALUATION OF ION-NITRIDED AND CARBONITRIDED LAYERS ON BH11 AND D2 TOOL STEELS: EDDY CURRENT TESTING AND BARKHAUSEN NOISE METHODS. Proceedings of the International Conference on Secure Systems Design and Technology Development. 2, (Sep. 2026), 173–176. DOI:https://doi.org/10.68302/std2026.vol2.143.