Fireside corrosion degradation of 15Mo3, T22, T23 & T91 in simulated coal-biomass co-fired environment

摘要

This paper reports the result of a fireside corrosion test carried out on four low alloyed ferritic alloys at 650 degrees C for 1000 h. The combustion gases were derived from co-firing cereal co-product with a UK coal. Synthetic deposits were used to assess the influence of the deposit compositions. The samples were examined using an ESEM/EDX. To quantify the metal damage the pre-exposure micrometre measurements were compared with the post-exposure image analyser measurements on sample cross-sections. The median metal damage of the alloys showed the following ranking (most to the least damage): 15Mo3>T22>T23>T91.