Breakaway corrosion of austenitic steel induced by fireside corrosion
Source abstract
Abstract
Abstract The long-term fireside corrosion in biomass co-firing of Sanicro 25 was characterized employing advanced high-resolution electron microscopy methods. The analysed sample was exposed for 7000 h at 650 °C showing breakaway corrosion. The corrosion mode differed from type II hot corrosion. The main effects were the formation of a thick nickel sulphide layer and accelerated metal loss. This sulphide formation became possible due to subsurface zone chromium depletion by the formation of stable chromium carbides. With decreasing Cr activity both the ability to maintain the protective scale and the possibility to trap sulphur in Cr sulphides are reduced.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High-Temperature Coating Behaviors · Metal Alloys Wear and Properties · Hydrogen embrittlement and corrosion behaviors in metals
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Long-term exposure of austenitic steels and nickel-based alloys in lignite-biomass co-firing10.1002/maco.201911109 ↗
2. Creep and LCF behaviors of newly developed advanced heat resistant austenitic stainless steel for A-USC10.1016/j.proeng.2013.03.248 ↗
3. Montgomery · 2017 · 3
4. Lai · 2007
5. Otsuka · 2010 · 457
6. Modelling hot corrosion in industrial gas turbines10.3184/096034007X263587 ↗
7. Hot corrosion
8. Determination of the initiation and propagation mechanism of fireside corrosion10.1007/s11085-015-9559-y ↗
9. Mechanisms of hot corrosion of pure nickel at 700°C: influence of testing conditions10.1016/j.corsci.2018.06.009 ↗
10. Microstructure and chemical composition of the oxide scale formed on the Sanicro 25 steel tubes after fireside corrosion10.1016/j.corsci.2015.10.030 ↗
11. Intiso · 2013
12. Hot corrosion of materials: a fluxing mechanism?10.1016/S0010-938X(01)00057-9 ↗
13. Lange · 2017
14. Identification of nickel sulphides on Ni-YSZ cermet exposed to H2 fuel containing H2S using Raman spectroscopy10.1016/j.jpowsour.2005.06.016 ↗
15. Microstructural stability and oxidation behaviour of Sanicro 25 during long-term steal exposure in the temperature range 600–750°C10.1002/maco.201407901 ↗
16. Effect of Cu content on aging precipitation behaviors of Cu-rich phase in Fe-Cr-Ni alloy10.1016/S1006-706X(10)60101-X ↗
17. Development of high strength interstitial free steel by copper precipitation hardening10.1016/j.matlet.2006.10.037 ↗
18. Oxidation of Sanicro 25 (42Fe22Cr25NiWCuNbN) in O2 and O2 + H2O environments at 600–750 °C10.1007/s11085-015-9528-5 ↗
19. Trends in fireside corrosion damage to superheaters in air and oxy-firing of coal/biomass10.1016/j.fuel.2013.04.005 ↗
20. Corrosion behavior of various steels in the simulated fluidized bed boiler environment10.1002/(SICI)1521-4176(199812)49:12<888::AID-MACO888>3.0.CO;2-I ↗
21. Performance of materials in fluidized bed combustors10.1007/BF02834146 ↗
22. High temperature corrosion in fluidized bed combustion systems10.1007/BF02833572 ↗
23. Young · 2008
24. The oxidation of alloys10.1088/0034-4885/39/5/001 ↗
25. Mechanism of breakaway oxidation of Fe-Cr and Fe-Cr-Ni alloys in dry and wet carbon dioxide
26. Olszewski · 2012
27. Corrosion of metals and alloys in mixed gas environments at elevated temperatures10.1007/BF00603609 ↗
28. Gas phase analysis of CO interactions with solid surfaces at high temperatures10.1016/j.apsusc.2004.04.001 ↗
29. Vaporisation of chromia in humid air10.1016/j.jpcs.2004.06.092 ↗
30. Corrosion of iron in sulfur dioxide at 0.1 MPa10.1007/BF01046847 ↗
31. High-temperature corrosion of iron in sulfur dioxide at low pressure10.1007/BF01046887 ↗
32. Investigation of the corrosion mechanisms of nickel and nickel-based alloys in SO2-containing environments using an evolved gas analysis technique10.1016/0921-5093(89)90728-4 ↗
33. Corrosion in SO2 of chromium and manganese at high temperature10.1007/BF00667418 ↗
34. Role of carbides in the high temperature corrosion of steels in HCl-containing atmospheres
35. The role of chlorides in hot corrosion
36. N. Otsuka . International Symposium on High-Temperature Oxidation and Corrosion 2018 2018; Matsue, Japan 21-26.
37. E. Larsson . The Corrosive Effect of Chlorine Containing Species on Waterwalls and Superheater Materials in Waste and Biomass-Fired Power Plants, Department of Chemistry and Chemical Engineering, Chalmers University of Technology 2016; Thesis/Dissertation.