Hamd, Emad Kh., Abbas Sh. Alwan, and Ihsan Khalaf Irthiea. 2018. “Study the Effect of Welding Heat Input on the Microstructure, Hardness, and Impact Toughness of AISI 1015 Steel”. Al-Khwarizmi Engineering Journal 14 (1):118-27. https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/120.