Hot corrosion mechanism of nickel-based single crystal superalloy IC21 under flowing atmosphere
Source abstract
Abstract
The hot corrosion behavior of the nickel-based single crystal superalloy IC21 under different atmosphere conditions is investigated. Compared with the conventional hot corrosion, it can be concluded that the flow atmosphere can significantly reduce the hot corrosion resistance of the superalloy. The mechanism leading to this phenomenon is that the refractory metal oxides (MoO 3 ) produced by the hot corrosion of the superalloy accelerate the fluxing process of the main oxides (NiO). At the same time, the flowing atmosphere aggravates the direct reaction between molten salt and matrix under low oxygen conditions.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High-Temperature Coating Behaviors · High Temperature Alloys and Creep · Metallurgical Processes and Thermodynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Injeti G. Gas Turbines: Materials, Modeling and Performance: AvE4EvA, 2015.
2. On the oxidation behavior of titanium within coated nickel-based superalloys10.1016/j.actamat.2015.03.052 ↗
3. Effect of pre-strain on oxidation behaviour of nickel-based superalloys in air at 700 °C
4. Development of strong, oxidation and corrosion resistant nickel-based superalloys: critical review of challenges, progress and prospects10.1080/09506608.2018.1516713 ↗
5. The hot corrosion of nickel-based ternary alloys and superalloys for gas turbine application ”II. The mechanism of corrosion in SO2/O2 atmospheres10.1016/0010-938X(87)90072-2 ↗
6. Influences of solution cooling on microstructures, mechanical properties and hot corrosion resistance of a nickel-based superalloy10.1016/j.msea.2019.01.015 ↗
7. Oxidation and hot corrosion behavior of nickel-based superalloy for gas turbine applications10.1080/10426914.2014.901530 ↗
8. Influence of sputtered nanocrystalline coating on oxidation and hot corrosion of a nickel-based superalloy M951
9. Hot corrosion of arc ion plating NiCrAlY and sputtered nanocrystalline coatings on a nickel-based single-crystal superalloy10.1016/j.corsci.2017.04.004 ↗
10. The effects of lead on the hot corrosion of nickel‐base alloys10.1149/1.2134375 ↗
11. Effect of thermal cycling on the hot corrosion of the Ni-base superalloy IN713LC10.1016/0010-938X(77)90006-3 ↗
12. A comparative study of oxidation and hot corrosion of a cast nickel base superalloy in different corrosive environments10.1016/S0167-577X(96)00109-7 ↗
13. Rapp R.A. Hot Corrosion by Fused Salts. Encyclopedia of Materials: Science and Technology (Second Edition) 2001:3834.10.1016/B0-08-043152-6/00682-3 ↗
14. Hot corrosion of protective coatings10.1080/10426910008913019 ↗
15. Effect of Zr, Ti, Ta and Mo addition on high-temperature oxidation and hot corrosion behavior of NiAlY alloys10.1016/j.jallcom.2022.164614 ↗
16. Hot corrosion of MCrAlY coatings in sulphate and SO2 environment at 900 ℃: Is SO2 necessarily bad?10.1016/j.surfcoat.2014.11.065 ↗
17. Hot corrosion behaviour of low Al NiCoCrAlY cladded coatings reinforced by nano-particles on a Ni-base super alloy10.1016/j.corsci.2010.07.011 ↗
18. Influence of Ta content on hot corrosion behaviour of a directionally solidified nickel base superalloy10.1016/j.jallcom.2014.08.259 ↗
19. A review on molten sulfate salts induced hot corrosion10.1016/j.jmst.2021.03.013 ↗
20. Comparison of Na2SO4, K2SO4 and Na2SO4-K2SO4 deposit induced hot corrosion of a β-NiAl coating
21. Sulphidation-oxidation behavior of a Ni-Co-Cr-Si alloy in an SO2+ O2atmosphere10.1007/BF00664662 ↗
22. Hot corrosion behaviour of Inconel 738 superalloy in presence of NaCl, Na2SO4, V2O510.1016/j.matpr.2022.05.068 ↗
23. Thermally sprayed nickel-based repair coatings for high-pressure turbine blades: controlling void formation during a combined brazing and aluminizing process10.3390/coatings11060725 ↗
24. Guo B., Wang X., Wang Y. Study on the Forecasting of the Hot Corrosion Resistance of Typical Superalloys for Aeroengines. Proceedings of 2019 3rd International Conference on Aerospace Technology, Communications and Energy Systems (ATCES 2019), 2019.
25. Design for anomalous yield in γ′-strengthening superalloys10.1016/j.matdes.2019.108082 ↗
26. CN-HB. Test method for corrosion behaviors at high-temperature with corrosive salts. HB 20401–2016, 2017.
27. Influence of Cr content on hot corrosion and a special tube sealing test of single crystal nickel base superalloy10.1016/j.corsci.2019.05.001 ↗
28. Young · 2016
29. Birks · 2006
30. Hot corrosion of metals and alloys10.1007/s11085-011-9254-6 ↗
31. Mechanism of Na2SO4-induced corrosion of molybdenum containing nickel-base superalloys at high temperatures
32. Hot corrosion behavior of newly developed nickel based superalloy and comparison with other alloys
33. An extension of the Wagner theory of alloy oxidation and sulfidation10.1007/BF00604474 ↗
34. Hot corrosion behaviour of continuous and pulsed current gas tungsten arc welded Hastelloy X in different molten salts environment10.1088/2053-1591/ab562a ↗
35. Lee D.B. Corrosion of 50%（Ni-22%Cr-10%Al-1%Y）-50%（ZrO2–8%Y2O3） Coatings in Na2SO4 and 75%NaCl-25%Na2SO4 Salts. The 2nd International Conference on Materials Science and Engineering Technology （MSET 2015）, 2015.
36. Hot corrosion and electrochemical behavior of NiCrAlY, NiCoCrAlY and NiCoCrAlYTa coatings in molten NaCl-Na2SO4 at 800 ℃10.1016/j.surfcoat.2022.128503 ↗
37. Hot corrosion behaviour of Pt modified aluminized NiCrAlYSi coating on a Ni-based single crystal superalloy10.1016/j.corsci.2019.01.014 ↗