Altuntaş, G., O. Altuntaş, and B. Bostan. “EFFECT OF CRYOGENIC AND NATURAL AGING PROCESS APPLIED TO Al-Zn-Mg-Cu ALLOYS ON LIFE TIME CALCULATION: Received: 19th June 2023; Revised: 29th June 2023, 12th October 2023, 25th October 2023; Accepted: 31st October 2023”. MATTER: International Journal of Science and Technology, vol. 9, Nov. 2023, pp. 113-26, doi:10.20319/mijst.2023.9.113126.