YEKINNI, A.A., ONIFADE, M. .Kehinde, Ayoola, W.A. and Mudashiru, L.O. 2026. Effect of initial quenching temperature on the hardness of AA6061 aluminium alloy and C18200 copper alloy. LAUTECH Journal of Engineering and Technology. 19, 5 (Feb. 2026), 171–179.