Estimation of the lifetime of Al/Ni-plated material for wet-seal area in molten carbonate fuel cells

Screening and Properties of New Materials for MCFC Application

“…The protective films AlCoFeCr and FeCrAl (61) present an excellent corrosion resistance. Promising results have also been obtained with SS310 covered by Ni and then Al (62). Ferritic steels with high chromium contents (54,60,63,64) permit to moderate the bipolar plate corrosion (1).…”

“…Concerning the aluminized deposits (57,58), a protective layer of LiAlO 2 allows a better corrosion resistance.As for nickel-based deposits (59), they are well-adherent and lead to a significant decrease in the corrosion rates. Tests on protected SS310S have been realised (60)(61)(62). Thus, a simple protection by an aluminum layer allows increasing the steel lifetime at low cost (60).…”

Influence of Aluminum Depletion on the Lifetime of an Al-Fe Coating in Eutectic (Li,K)<SUB>2</SUB>CO<SUB>3</SUB> at 650&deg;C

“…6 which can be generated by means of the Kirkendal effect. [24][25][26] Next, the microstructures of both the coating and the inter-diffusion layer have been changed through continuous diffusional interaction with the substrate. In addition, a new microstructural morphology is observed at the bottom of the Al-Fe coating layer.…”