Corrosion behavior of ceramics-coated hastelloy-XR alloy in an Ar-SO2 atmosphere

Rong Tu; Takashi Goto

doi:10.2320/matertrans.44.962

Corrosion behavior of ceramics-coated hastelloy-XR alloy in an Ar-SO₂ atmosphere

Rong Tu, Takashi Goto

Materials Processing and Characterization Division

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Glass lining and CVD (chemical vapor deposition) YSZ (yttria stabilized zirconia) coating were applied to improve the corrosion resistance of Hastelloy-XR alloy in an Ar-SO₂ atmosphere (P_SO2 = 10kPa). A glass lining with the composition of 48 SiO₂-8 B₂O₃-6 Al₂O₃-11 CaO-25 BaO-2 ZnO (mass%) which protected the alloy substrate showed almost no crystallization and mass change below 1073K, but suffered degradation at temperatures over 1173 K. The YSZ (8 mol% Y₂O₃) coating had a well-grown columnar structure and showed excellent corrosion resistance at 1273 K.

Original language	English
Pages (from-to)	962-967
Number of pages	6
Journal	Materials Transactions
Volume	44
Issue number	5
DOIs	https://doi.org/10.2320/matertrans.44.962
Publication status	Published - 2003 May

Keywords

Ceramics coating
Glass lining
Hastelloy-XR alloy
Metal-organic chemical vapor deposition
Sulfur dioxide atmosphere
Yttria stabilized zirconia

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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abstract = "Glass lining and CVD (chemical vapor deposition) YSZ (yttria stabilized zirconia) coating were applied to improve the corrosion resistance of Hastelloy-XR alloy in an Ar-SO2 atmosphere (PSO2 = 10kPa). A glass lining with the composition of 48 SiO2-8 B2O3-6 Al2O3-11 CaO-25 BaO-2 ZnO (mass%) which protected the alloy substrate showed almost no crystallization and mass change below 1073K, but suffered degradation at temperatures over 1173 K. The YSZ (8 mol% Y2O3) coating had a well-grown columnar structure and showed excellent corrosion resistance at 1273 K.",

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