Ali, S., Laghari, A.Q., Iqbal, A., Memon, G.M., Abro, M., Memon , I.A. , Channa , F.H. , Channa, A.S., Muhammad, K. and Noonari, S.A. 2026. Investigation of morphological and mechanical properties of hardened and tempered AISI 4340 steel. Journal of the Serbian Chemical Society. (Mar. 2026). DOI:https://doi.org/10.2298/JSC251123012A.