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Author

Gurnam Singh

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Open access Oct 2026

Statistical modeling and multi response optimization of wire electrical discharge machining of Haynes 230 with validation through microstructural characterization

Haynes 230, a high-temperature Ni–Cr–W–Mo superalloy valued for its oxidation resistance and thermal stability, exhibits severe deformation-induced hardening and tool wear during conventional machining. However, the machinability of this specific alloy under wire electrical discharge machining regimes remains largely u...

Gurnam Singh, N. Grover, V. Aggarwal · 0 citations
Review Open access Oct 2026

Surface Integrity Evolution in WEDM of Nickel-Based Superalloys: Formation and Implications of Recast Layer, Residual Stresses, and Microhardness—A Critical Review

Wire Electrical Discharge Machining (WEDM) is widely applied for machining nickel-based superalloys used in aerospace and high-temperature systems; however, thermally induced surface alterations strongly affect structural reliability. This review synthesizes recast layer thickness (RLT), microhardness evolution, residu...

Gurnam Singh, N. Grover, V. Aggarwal · 0 citations

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