Characterization of Welded Joints of Dissimilar Nickel-Based Superalloys by Electron Beam and Rotary Friction Welding

Experimental studies of fracture and fatigue crack growth in dissimilar metal welded joints of nickel-based superalloys: Cracks oriented along the weld

“…Mechanical and metallurgical properties of EBW samples with detailed microstructural characterizations including SEM and EBSD studies shall be found in the author's recent research. 18 From the macrostructure and microstructure observations, the weld interface was continuous and smooth without any defects affecting the weld strength. A radiography test was also carried out to check the soundness of the weld and no weld defects were observed.…”

“…The tensile test results of BMs and welded samples, as drawn from the author's previous work are shown in Table 3. 18 The BMs have different yield strengths and UTS. Compared to Inconel 718, Nimonic 80A has higher yield strength and UTS.…”

“…17 Further details on the justification for the current research problem, its application, and characterization of the welded joints shall be found in the authors’ recent publication. 18…”

“…17 Further details on the justification for the current research problem, its application, and characterization of the welded joints shall be found in the authors' recent publication. 18 In this article, experimental studies of Mode-I fracture toughness and FCGRs in DMWJ between Inconel 718 and Nimonic 80A in the butt joint configuration were carried out. The crack was oriented in and along the weld.…”

Production of the Design Developed to Assembly Filter Parts, Optimization of Welding and Field Test

“…In Saju and Velu's study [7], Inconel 718 and Nimonic 80A materials were joined by electron beam welding (EBW) and RFW methods. The metallurgical and mechanical properties of the joined parts were compared.…”