High Temperature Corrosion of Austenitic Stainless Steels

Pillai, S. Rajendran

doi:10.1533/9780857094018.287

Cited by 10 publications

(9 citation statements)

References 54 publications

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“…Operators must increase operation temperature and pressure to increase the thermal efficiency of coal-fired power plants. Austenitic stainless steels, such as AISI 310 SS, with high chromium and nickel are widely used in high-temperature applications due to its high-temperature strength and corrosion resistance [2]. However, creep failure, a potential risk for alloys, always exists in materials used in long-term high-temperature applications [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of niobium on microstructure and precipitation in As-annealed Sanicro 25 steel

Huang

Kuo

Tsai

et al. 2018

Ironmaking & Steelmaking

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The chemical compositions of Sanicro 25 stainless steel added with different concentrations of niobium (Nb) (0, 0.29, 0.58, and 0.86 wt-%) were investigated. X-ray diffraction analysis showed that the matrix of all the prepared materials was austenite. The average grain size decreased from 426 to 90 µm with the increase in Nb content. Electron backscatter diffraction and energy dispersive Xray spectroscopy analyses showed that Cr 23 C 6 was the main precipitate in the Nb-free steel, whereas Nb(C, N) were the main precipitates in Nb-containing steel. The increase in Nb content also increased the volume fraction and average particle size of the precipitates.

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Section: Introductionmentioning

confidence: 99%

Effect of niobium on microstructure and precipitation in As-annealed Sanicro 25 steel

Huang

Kuo

Tsai

et al. 2018

Ironmaking & Steelmaking

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“…The iron-rich outer oxide layer was not observed on the surface of belt B2 after service in the modified atmosphere (Figure 6b). An iron-rich oxide layer grows faster than the oxide that is rich in chromium [8]. Therefore, iron-rich oxide scales are not as protective as chromium-rich oxides.…”

Section: Surface Oxide Scales Chromium-depleted Zone and Internal Oxi...mentioning

confidence: 99%

“…The belt is nitrided by nitrogen from the nitrogen-based sintering atmosphere and carburized by carbon-bearing compounds that form during delubrication of powder metal parts. High temperature degradation phenomena involving creep, oxidation, carburization and nitridation are characteristic of austenitic stainless steels [6][7][8]. Carburization and nitridation lead to internal carbide and nitride precipitation, which may result in serious embrittlement [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…High temperature degradation phenomena involving creep, oxidation, carburization and nitridation are characteristic of austenitic stainless steels [6][7][8]. Carburization and nitridation lead to internal carbide and nitride precipitation, which may result in serious embrittlement [6][7][8]. Nitridation, carburization, deformation and abrasive wear are well recognized phenomena that contribute to wire mesh belt failure [1,2,4,6].…”

Section: Introductionmentioning

confidence: 99%

“…Stainless steels are protected from the corrosive effect of the environment, including carburization and nitridation, by a uniform surface layer of chromium oxide [6,8]. However, in the high heat zone of a sintering furnace operating with a typical nitrogen-6% hydrogen atmosphere, the reducing environment destroys the protective chromium oxide scales.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Service Life Extension of Stainless Steel Wire Mesh Belts for Sintering Furnaces

Wehr-Aukland

Bowe

Zaffuto³

et al. 2012

MSF

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The service life of stainless steel wire mesh belts in sintering furnaces is limited, because material deterioration results in wire fracture. A newly developed humidification system establishes a furnace atmosphere that maintains a protective oxide scale on the belt surface throughout the sintering process and at the same time creates an environment that is reducing to the sintered metal compact. This work includes thermodynamic calculations of the furnace atmosphere dew points that satisfy these oxidation / reduction criteria. Scanning Electron Microscopy, combined with Energy-dispersive X-ray Analysis, and mechanical testing methods have been used to compare belts that have undergone the same length of service in a nitrogen-hydrogen atmosphere and in an atmosphere that was modified using the newly developed humidification method. The material examinations have revealed that the new humidification system significantly extends the service life of stainless steel belts.

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Hot Corrosion Evaluation of Cr3C2/8YSZ-Based Plasma-Sprayed Coatings on SS316 in Na2SO4–V2O5 Molten Salt Environment at 700 °C

Maharajan,

Rex

2024

J Fail. Anal. and Preven.

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High Temperature Corrosion of Austenitic Stainless Steels

Cited by 10 publications

References 54 publications

Effect of niobium on microstructure and precipitation in As-annealed Sanicro 25 steel

Effect of niobium on microstructure and precipitation in As-annealed Sanicro 25 steel

Service Life Extension of Stainless Steel Wire Mesh Belts for Sintering Furnaces

Hot Corrosion Evaluation of Cr3C2/8YSZ-Based Plasma-Sprayed Coatings on SS316 in Na2SO4–V2O5 Molten Salt Environment at 700 °C

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