The steady-state creep rate of Ni-base metallic foams, with superalloy composition (in wt. pct) Ni7.8∼9.1Al (relative density, ρ = 2.5-2.6) and Ni-13.5∼16.6Cr-5.1∼8.9Al (ρ = 2.8∼3.0), was measured under a range of temperatures (680∼825°C) and applied stresses (0.1∼0.3 MPa), and compared with that of NiAl intermetallic foams (ρ = 5.3). The stress exponent and activation energy are within the exp...

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Incoloy 825 alloy is often used in calorifiers, propeller shafts, and tank vehicles owing to the improved resistance aqueous corrosion. The electrochemical micromachining process can be utilized machine such an engineering material higher precision lower tool wear. In present study, investigation was performed enhance of creating micro-holes using silver-coated copper electrodes. sodium nitrate...

Abstract This research article addresses the pitting corrosion resistance of FGM walls fabricated by Wire Arc Additive Manufacturing (WAAM). The wall is created layer-by-layer transfer molten metal in an uninterrupted manner with little heat input using CMT process. Pitting tests were carried out as per ASTM G48-11 standard on specimens extracted from Inconel 825, interfaces, and SS316L regions...