On the phase transformation pathway during localized grain boundary oxidation in an Fe-10 at% Cr alloy at 200ºC
Source abstract
Abstract
We have performed short-term, controlled oxidation experiments of sputter deposited Fe-10 at% Cr alloy films at 200ºC. Nanoscale structural characterization by four-dimensional scanning transmission electron microscopy (4d-STEM) and chemical characterization by atom probe tomography (APT) have provided insights on the phase transformation pathway followed during localized, inward-progressing oxidation of grain boundaries at this low temperature. Direct nucleation of a metastable spinel-structured oxide, with suppression of the corundum-structured Cr 2O 3 has been observed even at the early stages. A ‘partitioning-free oxide nucleation mechanism’ under conditions of extremely restricted kinetics is proposed to explain the non-equilibrium transformation pathway.
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Research context
OpenAlex topics: Advanced Materials Characterization Techniques · High-Temperature Coating Behaviors · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
Show source-provided references
1. Comprehensive nuclear materials
2. Low-temperature tracer diffusion of chromium in Fe-Cr ferritic alloys10.1016/1359-6462(96)00148-0 ↗
3. Ferritic-martensitic steels for fission and fusion applications10.1016/j.jnucmat.2019.05.058 ↗
4. A review of the oxidation behaviour of structural alloys in steam10.1179/095066010X12646898728165 ↗
5. New insights into the oxidation mechanisms of a Ferritic-Martensitic steel in high-temperature steam10.1016/j.actamat.2020.05.052 ↗
6. High-resolution characterization of the internal and external oxidation of austenitic alloys in supercritical water10.1016/j.scriptamat.2021.113814 ↗
7. Corrosion behavior of 9–12% Cr ferritic–martensitic steels in supercritical water10.1016/j.corsci.2009.12.032 ↗
8. The oxidation behaviour of metals and alloys at high temperatures in atmospheres containing water vapour: a review10.1016/j.pmatsci.2007.11.001 ↗
9. Corrosion behavior of ferritic/martensitic steel P92 in supercritical water10.1016/j.supflu.2009.06.019 ↗
10. Oxidation behavior of interstitial free steel: the defining role of substrate crystallographic texture10.1016/j.actamat.2020.03.019 ↗
11. Predictions and analyses on the growth behavior of oxide scales formed on ferritic–martensitic in supercritical water10.1007/s11085-019-09912-2 ↗
12. Corrosion and stress corrosion cracking in supercritical water10.1016/j.jnucmat.2007.05.017 ↗
13. A model for mild steel oxidation in CO210.1007/BF00610578 ↗
14. Water vapour effects on corrosion of Ni-Cr alloys in CO2 gas at 650 °C10.1016/j.corsci.2018.03.023 ↗
15. Corrosion behavior of an alumina forming austenitic steel exposed to supercritical carbon dioxide10.1016/j.corsci.2013.12.023 ↗
16. Transmission electron microscopy (TEM) on oxide layers formed on D9 stainless steel in lead bismuth eutectic (LBE)10.1016/j.corsci.2012.09.019 ↗
17. Oxidation mechanism of an Fe–9Cr–1Mo steel by liquid Pb–Bi eutectic alloy at 470°C (Part II)10.1016/j.corsci.2008.06.051 ↗
18. Enhanced internal oxidation as trigger for breakaway oxidation of Fe–Cr alloys in gases containing water vapor10.1016/j.scriptamat.2007.06.058 ↗
19. The mechanism of high temperature aqueous corrosion of stainless steels10.1016/0010-938X(91)90125-9 ↗
20. Corrosion of ferritic–martensitic steels in steam and supercritical water10.1016/j.jnucmat.2012.09.037 ↗
21. Comparative oxidation behaviour of Fe-9Cr steel in CO2 and H2O at 550°C: Detailed analysis of the inner oxide layer10.1016/j.corsci.2015.07.032 ↗
22. Morphology and buckling of the oxide scale after Fe–9Cr steel oxidation in water vapor environment10.1007/s11085-018-9873-2 ↗
23. Study of the corrosion of austenitic stainless steel D9 in Lead–Bismuth Eutectic (LBE): Extension of the Available Space Model to a ternary alloy10.1016/j.jnucmat.2012.05.041 ↗
24. In situ TEM observations of initial oxidation behavior in Fe-rich Fe-Cr alloys10.1016/j.surfcoat.2018.09.084 ↗
25. Nanoscale characterisation of grain boundary oxidation in cold-worked stainless steels10.1016/j.corsci.2012.06.030 ↗
26. Observation of internal oxidation in a 20% cold-worked Fe-17Cr-12Ni stainless steel through high-resolution characterization10.1016/j.scriptamat.2019.08.019 ↗
27. Automated crystal orientation mapping by precession electron diffraction-assisted four-dimensional scanning transmission electron microscopy using a scintillator-based CMOS detector10.1017/S1431927621012538 ↗
28. Modern focused-ion-beam-based site-specific specimen preparation for atom probe tomography10.1017/S1431927616012642 ↗
29. X. Zhou, tvips-blo.
30. Automated crystal orientation and phase mapping in TEM10.1016/j.matchar.2014.08.010 ↗
31. Array programming with NumPy10.1038/s41586-020-2649-2 ↗
32. SciPy 1.0: fundamental algorithms for scientific computing in Python10.1038/s41592-019-0686-2 ↗
33. py4DSTEM: a software package for four-dimensional scanning transmission electron microscopy data analysis10.1017/S1431927621000477 ↗
34. Revealing in-plane grain boundary composition features through machine learning from atom probe tomography data10.1016/j.actamat.2022.117633 ↗
35. Interpreting atom probe data from oxide–metal interfaces10.1017/S1431927618012370 ↗
36. Interpreting the presence of an additional oxide layer in analysis of metal oxides–metal interfaces in atom probe tomography10.1021/acs.jpcc.8b10895 ↗
37. Low-temperature tracer diffusion of chromium in Fe-Cr ferritic alloys10.1016/1359-6462(96)00148-0 ↗
38. A chemical diffusion model for partitioning of transition elements in oxide scales on alloys10.1080/14786437208226960 ↗
39. Point defects and cation tracer diffusion in (CrxFe1 − x)3 − δO4 spinels10.1016/0167-2738(95)00190-H ↗
40. Phase Equilibria
41. Oxygen injection during fast vs slow passivation in aqueous solution10.1016/j.actamat.2021.116898 ↗
42. Massive interstitial solid solution alloys achieve near-theoretical strength10.1038/s41467-022-28706-w ↗
43. Chromium coatings from trivalent chromium plating baths: characterization and cathodic delamination behaviour10.1016/j.corsci.2021.109525 ↗