Aluminizing of the EP33 alloy by hot-dipping

Abstract The features of hot-dip aluminizing of the EP33 alloy were studied and the structure transformation of the resulting coating during high-temperature treatment was investigated. Aluminizing the EP33 alloy leads to the formation of a continuous 120 μm thick coating, consisting of an aluminum...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 2697; no. 1; pp. 12058 - 12062
Main Authors Kulevich, V P, Bogdanov, A I, Shmorgun, V G
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.02.2024
Subjects
Aluminum
Chromium
Coating
Ferrous alloys
Heat treatment
High temperature
Hot dip aluminizing
Hot dipping
Inclusions
Intermetallic compounds
Iron aluminides
Molybdenum
Nickel
Phase composition
Substrates
Titanium
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Summary:Abstract The features of hot-dip aluminizing of the EP33 alloy were studied and the structure transformation of the resulting coating during high-temperature treatment was investigated. Aluminizing the EP33 alloy leads to the formation of a continuous 120 μm thick coating, consisting of an aluminum matrix with the Cr 2 Al1 3 intermetallic compound inclusions and a continuous layer of FeAl 3 intermetallic compound along the boundary with the substrate. Heat treatment of the aluminized alloy at 1100 °C ensures the formation of a layered coating structure. The phase composition of the coating from the surface to the substrate changes in the following sequence: FeAl(Ni,Cr,Ti,Mo) → FeAl(Ni,Cr,Ti,Mo)+Ni(Fe,Cr,Al,Ti,Mo) → FeAl(Ni,Cr,Ti,Mo)+Fe(Al,Ni,Cr,Ti,Mo).
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2697/1/012058