Metal dusting corrosion studies using thermogravimetric experiment coupled with acoustic emission analysis

International audience ; The coupling of in situ physical techniques is a promising way to improve knowledge on the corrosion of metallic materials at high temperature. For this purpose thermogravimetric analysis (TGA) has been associated with acoustic emission (AE) devices to measure acoustic signals emitted during the corrosion of metal samples under carbon rich atmosphere (a c > 1). Simultaneous measurements of the mass variation and of the acoustic signals can give complementary information to increase the level of understanding of metal dusting. This work presents the study of pure iron metal dusting corrosion at 600 °C under i-C 4 H 10 + H 2 + He atmosphere.