Microstructure and oxidation resistance of aluminide layer produced on Inconel 100 nickel alloy by CVD method

Ryszard Sitek , Tomasz Bolek , Romuald Dobosz , Tomasz Płociński , Jarosław Mizera

Abstract

The study was concerned with heat-protection of the IN 100 nickel superalloy by covering it with a diffusive β-NiAl intermetallic layer produced by the CVD method. Oxidation resistance tests were conducted at 950 °C in air. The alloy samples, with and without the intermetallic layer, were subjected to 24 heating-cooling cycles each lasting for 24 h and then their oxidation resistance was compared. During the oxidation tests, the stress induced in the coatings was analyzed by the finite element method which was also used for monitoring the growth of the α-Al2O3 scale during the successive thermal cycles (birth & death element analysis). The aluminum oxide scale appeared to be continuous and compact. The stress level depended on the surface roughness of the interface between the intermetallic layer and the oxide scale and was the highest in the region of its surface peaks and the lowest in the valleys where it was compressive. The coatings composed of the diffusive β-NiAl intermetallic layer, about 11 μm thick, and the α-Al2O3 scale had a high thermal shock resistance and very good corrosion resistance. © 2016
Author Ryszard Sitek (FMSE / DMD)
Ryszard Sitek,,
- Division of Materials Design
, Tomasz Bolek (FMSE / DMD)
Tomasz Bolek,,
- Division of Materials Design
, Romuald Dobosz (FMSE / DMD)
Romuald Dobosz,,
- Division of Materials Design
, Tomasz Płociński (FMSE / DMD)
Tomasz Płociński,,
- Division of Materials Design
, Jarosław Mizera (FMSE / DMD)
Jarosław Mizera,,
- Division of Materials Design
Journal seriesSurface and Coatings Technology, ISSN 0257-8972
Issue year2016
Vol304
Pages584 - 591
Publication size in sheets0.5
Keywords in EnglishAluminide layer; Finite element method; Inconel 100; Oxidation resistance; STEM
ASJC Classification2505 Materials Chemistry; 2508 Surfaces, Coatings and Films; 3110 Surfaces and Interfaces; 3104 Condensed Matter Physics; 1600 General Chemistry
DOIDOI:10.1016/j.surfcoat.2016.07.072
URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979741980&partnerID=40&md5=802074a8216513b1f7fc0370c27f68d6
Languageen angielski
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4 Microstructure and oxidation resistance of aluminide layer produced on Inconel 100 nickel alloy by CVD method.pdf 2.66 MB
Score (nominal)35
Score sourcejournalList
ScoreMinisterial score = 35.0, 20-12-2019, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 20-12-2019, ArticleFromJournal
Publication indicators WoS Citations = 6; Scopus Citations = 8; GS Citations = 8.0; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.359; WoS Impact Factor: 2016 = 2.589 (2) - 2016=2.538 (5)
Citation count*8 (2020-09-15)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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