Metal dusting phenomenon during carburization of FeNiCr‐alloys at 850–1000°C | Zendy

Forseth S. | Zendy; Kofstad P. | Zendy

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Metal dusting phenomenon during carburization of FeNiCr‐alloys at 850–1000°C

Author(s) -

Forseth S.,

Kofstad P.

Publication year - 1995

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.19950460403

Subject(s) - metallurgy , carbide , materials science , austenite , graphite , metal , chromium , decomposition , decarburization , chemistry , microstructure , organic chemistry

Three austenitic FeNiCr steels, G 4848, G 4852 and 36 XM, have been corroded in CH 4 + H 2 mixtures at 850, 900 and 1000°C. Under these conditions a new metal dusting phenomenon has been observed where closed cavities near the exposed surfaces of the alloys are filled with a powdery mixture of graphite, iron metal, chromium carbide and also in cases SiO 2 . It is tentatively concluded that the powder is formed through the decomposition of (Cr, Fe) 7 C 3 .

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