Role of Prior Cyclic Oxidation on Tensile Deformation Behaviour of IN 713 C Alloy

Tensile test specimens fabricated out of IN 713 C alloy were subjected to cyclic oxidation at 850 ^oC in the air for 500 h, and their tensile properties were evaluated at 650 and 750 °C. Cyclic oxidation exposure has been noted to induce degradation in the alloy’s tensile properties, resulting in decreased strength and ductility. The deterioration in the alloy’s tensile behavior is linked to both surface damage and microstructural degradation caused by cyclic oxidation. Additionally, coarsening of γ′-precipitates during tensile testing contributes to the observed effects.