August 21, 2025Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications

Effect of heat input on the microstructures and mechanical properties of gas tungsten arc welded dissimilar joints between Hastelloy C-22 and Nitronic 50 stainless steel

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The low heat input weld exhibited higher tensile strength at 825 MPa compared to 750 MPa for the high heat input weld.
Microstructural analysis revealed finer dendritic structures under low heat input conditions, enhancing mechanical performance.
Weld defects were absent, indicating effective gas tungsten arc welding across both heat input conditions.
Intermetallic compound formation was limited in low heat input conditions, resulting in superior impact toughness and hardness.

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Implication

Experimental analysis shows LHI conditions improve mechanical properties in gas tungsten arc welded dissimilar joints, suggesting optimal heat management.

Cite This Study

Jibhakate et al. (2025) studied this question.

synapsesocial.com/papers/68af70627567bf4f94feb63d https://doi.org/10.1177/14644207251369092

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Implication

Experimental analysis shows LHI conditions improve mechanical properties in gas tungsten arc welded dissimilar joints, suggesting optimal heat management.

Effect of heat input on the microstructures and mechanical properties of gas tungsten arc welded dissimilar joints between Hastelloy C-22 and Nitronic 50 stainless steel

Key Points

Discussion

Implication

Cite This Study

Effect of heat input on the microstructures and mechanical properties of gas tungsten arc welded dissimilar joints between Hastelloy C-22 and Nitronic 50 stainless steel

Key Points

Discussion

Implication

Cite This Study

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