S. Ali Hosseini, S. Mehdi Abbasi, and K. Zanganeh Madar, “The Effect of Boron and Zirconium on Microstructure and Stress-Rupture Life of Nickel-based Superalloy ATI 718Plus”, Metall Mater Eng, vol. 21, no. 4, pp. 259–268, Dec. 2015.