A. Salman, Yahya. “The Effect of Nickel Concentration on Cyclic Oxidation Resistance of Austaintic Stainless Steel Alloy 321”. Rafidain Journal of Science 16, no. 2 (January 1, 2005): 5–11. Accessed September 29, 2025. https://jwups.uomosul.edu.iq/index.php/rsci/article/view/47079.