Intergranular oxidation behaviour of Ni-Cr-Al model alloys in 480 °C hydrogenated steam
Source abstract
Abstract
The oxidation of Ni-Cr-Al model alloys was investigated after exposure to a 480 °C hydrogenated steam environment. Low angle grain boundaries (LAGBs) and the studied coincidence site lattice grain boundaries (CSLBs) showed intergranular oxidation, while high angle grain boundaries (HAGBs) were protected by an external oxide. The intergranular oxide consisted of a central Al-rich oxide, surrounded by a Cr-rich oxide. Al contribution in intergranular and external oxidation was enhanced in Ni-Cr-Al alloys compared to Ni-Al alloys. Thus, the third element effect is applicable at low homologous temperature along short-circuit diffusion pathways, in this case grain boundaries.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · High Temperature Alloys and Creep · Nuclear Materials and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (49)
Show source-provided references
1. Internal oxidation10.1179/mst.1988.4.12.1072 ↗
2. Internal oxidation of Ag-xIn alloys at low homologous temperature10.1016/j.corsci.2020.108869 ↗
3. A review of oxidation phenomena in Ni alloys exposed to hydrogenated steam below 500 °C10.5006/1957 ↗
4. Comparing the intergranular oxidation of Ni-Cr and Ni-Al model alloys in 480 °C hydrogenated steam10.1016/j.scriptamat.2023.115501 ↗
5. The role of grain boundary misorientation in intergranular cracking of Ni-16Cr-9Fe in 360 °C argon and high purity water10.1007/BF02665051 ↗
6. The high-temperature internal oxidation and intergranular oxidation of nickel-chromium alloys10.1016/0010-938X(83)90056-2 ↗
7. Internal oxidation of Alloy 600 exposed to hydrogenated steam and the beneficial effects of thermal treatment10.1016/j.corsci.2014.04.041 ↗
8. Internal oxidation of alloy 690 in hydrogenated steam10.1016/j.corsci.2014.11.006 ↗
9. Internal oxidation of Ag-In alloys: stress relief and the influence of imposed strain10.1007/BF00664274 ↗
10. High-temperature behavior of a Pd-Ag alloy for porcelain10.1177/00220345830620121201 ↗
11. Internal oxidation of Ni-Al and Ni-Al-Si alloys at the dissociation pressure of NiO10.1016/0956-7151(94)90292-5 ↗
12. An atom probe tomography study of internal oxidation processes in alloy 60010.1016/j.actamat.2016.02.054 ↗
13. P.M. Scott, M.L. Calvar , Some possible mechanisms of intergranular stress corrosion cracking of alloy 600 in PWR primary water, presented at the Proc. 6th Int. Conf. on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors, San Diego, CA, 1993.
14. Development of preferential intergranular oxides in nickel-aluminum alloys at high temperatures10.1007/BF00662032 ↗
15. Characterization of initial intergranular oxidation processes in alloy 600 at a sub-nanometer scale10.1016/j.corsci.2018.01.020 ↗
16. G. Bertali, F. Scenini, J. Lindsay, B. Winiarsky, L. Zhong, M.G. Burke, Oxidation studies of alloy 600 in low pressure hydrogenated steam, presented at the Proceedings of the 16th international symposium on environmental degradation of materials in nuclear power system- water reactors, Houston, TX, 2013.
17. The effect of residual stress on the preferential intergranular oxidation of alloy 60010.1016/j.corsci.2016.05.022 ↗
18. The influence of alloying elements on the development and maintenance of protective scales10.1007/BF01046725 ↗
19. Passivity and inhibition during the oxidation of metals at elevated temperatures10.1016/S0010-938X(65)80003-8 ↗
20. Young · 2008 · 260
21. The third-element effect in the oxidation of Ni–xCr–7Al (x= 0, 5, 10, 15 at%) alloys in 1 atm O2 at 900–1000 °C10.1016/j.corsci.2006.03.008 ↗
22. O. Kubaschewski, C.B. Alcock , Metallurgical Thermochemistry 5th Edition,1977.
23. S.Y. Persaud, Stress Corrosion Cracking of Ni-Fe-Cr Alloys Relevant to Nuclear Power Plants, PhD thesis, University of Toronto, Toronto, On, 2015.
24. Y. Ghaffari, Oxidation studies on Ag-In and Ni-based alloys at low homologous temperature, PhD thesis, Queen's University (Canada), 2023.
25. IGSCC behavior of Alloy 600 steam generator tubing in water or steam tests above 360 °C10.5006/1.3583859 ↗
26. F. Scenini, R.C. Newman, R.A. Cottis, R.J. Jacko, Alloy oxidation studies related to PWSCC, presented at the Proc. 12th Int. Conf. on Environmental Degradation of Materials in Nuclear Power Systems–Water Reactors, Salt Lake City, UT, 2005.
27. T.S. Gendron, S.J. Bushby, R.D. Cleland, R.C. Newman , Oxidation embrittlement of alloy 600 in hydrogenated steam at 400C, presented at the Congrès européen de corrosion, France, 1997.
28. The structure of high-angle grain boundaries10.1016/0001-6160(66)90168-4 ↗
29. Effects of crystallographic orientation on the early stages of oxidation in nickel and chromium10.1007/s10853-009-4144-x ↗
30. Effect of surface crystallographic orientation on the oxidation behavior of Ni-based alloy10.1016/j.apsusc.2014.11.126 ↗
31. Characterization of oxide structures formed on nickel-chromium alloy during low pressure oxidation at 500–600 °C10.1007/BF00666809 ↗
32. N. Birks , G.H. Meier , F.S. Pettit , Introduction to the high-temperature oxidation of metals, 2006.10.1017/CBO9781139163903 ↗
33. Effects of boundary migration and pinning particles on intergranular oxidation revealed by 2D and 3D analytical electron microscopy10.1016/j.actamat.2017.04.003 ↗
34. Advanced microstructural characterization of the intergranular oxidation of alloy 60010.1016/j.corsci.2015.08.010 ↗
35. Directly correlated transmission electron microscopy and atom probe tomography of grain boundary oxidation in a Ni–Al binary alloy exposed to high-temperature water10.1016/j.scriptamat.2013.06.008 ↗
36. Understanding the role of diffusion induced grain boundary migration on the preferential intergranular oxidation behaviour of alloy 600 via advanced microstructural characterization10.1016/j.actamat.2019.06.021 ↗
37. Grain boundary selective oxidation and intergranular stress corrosion crack growth of high-purity nickel binary alloys in high-temperature hydrogenated water10.1016/j.corsci.2017.11.024 ↗
38. A mechanistic study of SCC in alloy 600 through high-resolution characterization10.1016/j.corsci.2018.01.004 ↗
39. Effect of temperature on the preferential intergranular oxidation susceptibility of thermally-treated alloy 60010.1016/j.corsci.2022.110565 ↗
40. The effect of grain boundary structure on the intergranular degradation behavior of solution annealed alloy 690 in high temperature, hydrogenated water10.1016/j.actamat.2019.10.041 ↗
41. The intergranular oxidation behavior of low-angle grain boundary of alloy 600 in simulated pressurized water reactor primary water10.1016/j.actamat.2021.117533 ↗
42. Grain boundary oxidation behavior of Ni-15Cr alloy in high temperature carbon dioxide10.1016/j.scriptamat.2022.114935 ↗
43. Replicating PWR primary water conditions in low pressure H2-steam environment to study alloy 600 oxidation processes10.1149/2.0081902jes ↗
44. On the role of intergranular nanocavities in long-term stress corrosion cracking of alloy 69010.1016/j.actamat.2021.117453 ↗
45. Stress corrosion crack initiation in alloy 690 in high temperature water10.1016/j.cossms.2018.02.001 ↗
46. Grain boundary engineering: an overview after 25 years10.1179/026708309X12601952777747 ↗
47. Oxidation of Ni‐Cr‐Al alloys between 1000 and 1200 °C10.1149/1.2407837 ↗
48. High resolution analysis of oxidation in Ni-Fe-Cr alloys after exposure to 315 °C deaerated water with added hydrogen10.1016/j.corsci.2016.02.009 ↗
49. The mechanism of oxidation of Ni-Cr-Al alloys at 1000–1200 °C10.1016/S0010-938X(71)80044-6 ↗