TRACK: Materials for Harsh Environments
Metal dusting is a damage mechanism that occurs under very specific process conditions, so it is not widespread, but when it occurs it is often at catastrophic rates. Also, although extensive past literature has been published providing laboratory test data, each data set is specific to a set of conditions and they are not easily compared with one another. Often the resistant alloys vary based on the test conditions. This paper builds on past papers by compiling case histories, listing numerous past published literature with test programs, and detailing the current inadequate methods (and subtle caveats) for predicting conditions which may cause metal dusting. Gaps in knowledge, especially in selecting appropriate alloys in both wrought and cast alloys, are presented. An impetus for this paper was various relatively new process technologies which may have a risk of metal dusting.