Effects of the pack Al content on the microstructure and hot corrosion behavior of aluminide coatings applied on Inconel-600

摘要

In this study, aluminide coatings were successfully synthesized on the nickel-based Inconel-600 superalloy substrates using the pack cementation method. The coatings were produced from the packs containing different amounts of Al in the range of 10 wt% - 30 wt%. For the hot corrosion experiments, the specimens were coated with a thin layer of solid Na2SO4 and subsequently placed in a muffle furnace in static air at 900 degrees C for 96 h.