New high temperature resistant FeCrAl alloy foils are proposed for application in applications as catalytic converter substrates for diesel engine emission controls. High temperature oxidation behavior and mechanical properties at elevated temperature are major design characteristics to be considered for application of these alloys. Semi-cyclic oxidation resistance and creep resistance were examined on a group of new FeCrAl alloys of 0.050mm thickness, produced by roll-bonding and diffusion alloying processes. These alloys were designed for applications at a maximum service temperature of 800oC. The influence of alloy chemistry and other effects were investigated in this work.

This research was partially sponsored by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of FreedomCAR and Vehicle Technology Program, as part of the High Temperature Materials Laboratory User Program, under contract number DE-AC05-00OR22725.