High Temperature Strength of Metal Foil Materials

摘要

The current trend for metallic catalytic converter steel foils is towards thinner thicknesses due to harder regulations. This leads to several problems; one is the demand on better oxidation properties because of less available aluminium per surface area unit. Another problem is that a material with better high temperature fatigue strength will possibly be needed. In the paper a number of methods for improving the high temperature strength of FeCrAl foils are suggested. The methods include strengthening by particles and solid solution hardening.