Materials for biomass combustion atmospheres

High temperature corrosion is one major challenge for biomass gasification materials. FeCrAl alloys have proven to have superior resistance to oxidation in air and combustion atmospheres. However, for an industrial application, these alloys must be joined to a conventional high-temperature alloy to cut down material costs. In this study the resistance of FeCrAl alloys with different aluminum contents in synthetic gasifier atmosphere is presented. Simultaneously, their properties after being soldered to Nicrofer 3220H (1.4876) and thermally cycled with high heating and cooling rates in air are revealed.