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Metal dusting of Fe 3 Al and (Fe,Ni) 3 Al
Author(s) -
Strauß S.,
Krajak R.,
Palm M.,
Grabke H. J.
Publication year - 1996
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19960471207
Subject(s) - materials science , metal , metallurgy
Metal dusting is a deterioration of metallic materials in strongly carburizing atmospheres under disintegration into a dust of carbon and fine metal particles (coke). The intermetallic compound Fe 3 Al is also very susceptible to metal dusting and disintegrates under formation of vast amounts of coke. The mechanism corresponds to the metal dusting of iron and steels, Fe 3 C is formed as an intermediate and the Al is oxidized. With increasing Cr‐addition and with increasing Ni‐content in alloys (Fe,Ni) 3 Al‐Cr the materials become more resistant, Ni 3 Al is not attacked by metal dusting.