Influence of high heating rates on evolution of oxides on directed laser energy additively fabricated IN718

Abstract The effect of non-isothermal treatment in oxygen-containing air, via heating rates 10, 50, and 1000 °C/min until °C followed by furnace cooling to room temperature on oxides formed directed laser energy additively fabricated IN718 was studied. Another set samples heated up using the same were isothermally held at for 1 hr temperature. X-ray photoelectron spectroscopy indicated presence NiO only °C/min. Also, results absence Fe-oxides non-isothermally treated samples, irrespective rate. However, isothermal confirmed all 50 durations complement with kinetics thermal treatments influenced oxide evolution samples. Such an experimental approach adopted study material response under dynamic short duration-high oxidation.