Oxidation-Affected Erosion of Porous Ni-Al Intermetallic Alloy in Combustion Applications: Pore-Scale Simulation

Advanced high-temperature oxidation resistance is a crucial characteristic of metallic materials in porous burners. Extreme combustion conditions could lead to oxidation-affected erosion media at long-time period burner operation. In this paper, we numerically simulated oxide scale growth radiant fabricated by Ni-Al intermetallic alloy using the synthesis method, focusing on structure degradation caused periodic spallation. A three-dimensional geometrical model scaffold was obtained scanning X-ray CT technique. The surface modeled reconstruction based calculated values spalled layer thickness. simulation revealed that submerged flame results non-uniform distribution temperature solid surface. Such non-isothermal two-times thicker external burner. Thin struts are prone first, which forms discontinues and further fragmentation. lose about 50% initial weight before fragmentation under with intense such large structural degradation, average flow velocity reduce factor 3, leading changing stabilization region.