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

Saju, Tom; Velu, M.

doi:10.1007/s11665-022-06958-3

Cited by 8 publications

(11 citation statements)

References 28 publications

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“…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.…”

Section: Resultsmentioning

confidence: 94%

“…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.…”

Section: Methodsmentioning

confidence: 99%

“…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…”

Section: Introductionmentioning

confidence: 99%

“…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.…”

Section: Introductionmentioning

confidence: 99%

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

Saju

Velu

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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Nickel-based superalloys, Inconel 718 and Nimonic 80A, were welded without any interlayer for Blisk manufacturing in aerospace industries. Fracture toughness and fatigue crack growth rate of the dissimilar metal welded joints were experimentally studied to confirm their structural integrity. Cracks were oriented in and along the weld. Base metals, Inconel 718, and Nimonic 80A differ in yield strength but have the same modulus of elasticity. Electron beam welding was used to butt weld Inconel 718 to Nimonic 80A. J resistance curve ( J vs. crack extension) was experimentally found to determine the elastic–plastic fracture toughness. The welded specimens showed lesser fracture toughness and higher crack growth rates than base metals. An increase in load ratio resulted in an increase in fatigue crack growth rate in the high Δ K region and a decrease in Δ Kth. Fractography studies confirmed linear elastic and plane strain fracture all along the fatigue crack growth rate path except for the final fracture with plane stress.

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Section: Resultsmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Saju

Velu

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…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.…”

Section: Introductionmentioning

confidence: 99%

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

Maden¹,

Çetinkaya²

2022

sv-jme

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At the joining of non-removable plastic parts, the methods such as friction welding, friction-stir welding, ultra-sonic welding, chemical joining, hot-plate welding use. Rotary friction welding, which is one of the friction welding methods, is generally used for joining the filter parts of water treatment devices. After rotating friction welding of the filter parts, semi-melted agglomerations are formed in the inner parts. To prevent semi-melted accumulation, weld joint profile design was developed in the ABAQUS program in the previous study. In this study injection molds had been produced and production according to weld joint profile design. The taken plastic presses were welded with the friction welding machine and the joint was controled and compared. It is seen that the semi-melted agglomeration was successfully confined. By performing Taguchi experimental method and ANOVA analysis on friction welding machine parameters the optimum pressure conditions were determined, aimed to carry out static and dynamic tests according to NSF standards and field tests by producing 1500 pilots product and it has been put into use. The lifetime of the developed filter depends on the material which was used in manufacture. In the next study, it is aimed to improve the lifetime of the developed filters.

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Influence of Post-weld Heat Treatment on Microstructure and Corrosion Behavior of Dissimilar Friction Welded Joint of IN713LC Superalloy and AISI 4140 Steel

Gaikwad,

Mishra,

Singh

2024

Metallogr. Microstruct. Anal.

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

Cited by 8 publications

References 28 publications

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

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

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

Influence of Post-weld Heat Treatment on Microstructure and Corrosion Behavior of Dissimilar Friction Welded Joint of IN713LC Superalloy and AISI 4140 Steel

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