Al-Aghbary, S.A.A. 2023. Investigation of the Structural and Mechanical Properties of ((82-X) Sn –XCu -18 In) % Alloy with X= 1,2,3,4and 5. Sana’a University Journal of Applied Sciences and Technology . 1, 3 (Sep. 2023). DOI:https://doi.org/10.59628/jast.v1i3.487.