Hasan, Muhammad Hasibul, Chahat Soi, Azin Mirzajavadkhan, Saba Rafieian, and Mirt Mehany. “Experimental Study and Computer Simulation of Fracture Toughness of Ni Base Superalloy Using CT Specimen”. International Journal of Engineering Materials and Manufacture 3, no. 4 (December 1, 2018): 224-236. Accessed September 23, 2019. http://deerhillpublishing.com/index.php/ijemm/article/view/83.