Understanding the role of Diffusion Induced Grain Boundary Migration on the preferential intergranular oxidation behaviour of Alloy 600 via advanced microstructural characterization
Source abstract
Abstract
This present work introduces a new understanding of the precursors events to Stress Corrosion Cracking (SCC) initiation in nuclear power plant components, exploring the role of grain boundary migration and Preferential Intergranular Oxidation (PIO). In this work, a systematic evaluation of Alloy 600 exposed in low pressure H2-steam over a range of oxidizing potentials in the vicinity of the Ni/NiO transition has revealed a notable decrease in PIO for conditions more oxidizing than the Ni/NiO transition, whilst local diffusion-induced grain boundary migration occurs irrespective of the oxidizing potential. Thus, grain boundary migration in itself is not a unique signature for PIO and SCC incubation, but it is necessary for the development of PIO and it represents a critical acceleration factor for more reducing conditions (such as those in pressurised water reactors) where oxide film instability allows for the initiation of PIO. It is also shown that Al/Ti enrichments that develop along the migrated GBs correlate with the occurrence of PIO when the alloy develops a non-protective external oxide.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: High-Temperature Coating Behaviors · Hydrogen embrittlement and corrosion behaviors in metals · Nuclear Materials and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (66)
Show source-provided references
1. 1 - historical views on stress corrosion cracking of nickel-based alloys: the Coriou effect
2. Corrosion potential behavior in high temperature water of noble metal-doped alloys and coatings on structural materials by underwater thermal spraying10.5006/1.3292132 ↗
3. IGSCC behavior of alloy 600 steam-generator tubing in water or steam tests above 360 °C10.5006/1.3583859 ↗
4. Primary water SCC understanding and characterization through fundamental testing in the vicinity of the nickel/nickel oxide phase transition
5. Characterisation of stress corrosion cracking and internal oxidation of alloy 600 in high temperature hydrogenated steam
6. A new evaluation method for short crack growth and influence of dissolved hydrogen on PWSCC of alloy 600 the principles of crack growth rate evaluation method
7. 2000 F.N. Speller award lecture: stress corrosion cracking in pressurized water reactors—interpretation, modelling, and remedies10.5006/1.3280580 ↗
8. Scott · 1997
9. The mechanism and modelling of intergranular stress corrosion cracking of nickel-chromium-iron alloys exposed to high purity water
10. Environmental effects on PWSCC initiation and propagation in alloy 600
11. 12 - on line electrochemical monitoring in light water reactor (LWR) systems
12. Scott · 1993 · vol. 657
13. Advanced microstructural characterization of the intergranular oxidation of Alloy 60010.1016/j.corsci.2015.08.010 ↗
14. The effect of residual stress on the preferential intergranular oxidation of alloy 600, corrosion
15. The intergranular oxidation susceptibility of thermally – treated Alloy10.1016/j.corsci.2016.11.004 ↗
16. The effect of temperature on the preferential intergranular oxidation susceptibility of alloy 60010.1007/s11661-018-4491-9 ↗
17. Internal oxidation of Alloy 600 exposed to hydrogenated steam and the beneficial effects of thermal treatment10.1016/j.corsci.2014.04.041 ↗
18. Effects of boundary migration and pinning particles on intergranular oxidation revealed by 2D and 3D analytical electron microscopy10.1016/j.actamat.2017.04.003 ↗
19. Characterization of initial intergranular oxidation processes in alloy 600 at a sub-nanometer scale10.1016/j.corsci.2018.01.020 ↗
20. 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 ↗
21. A mechanistic study of SCC in Alloy 600 through high-resolution characterization10.1016/j.corsci.2018.01.004 ↗
22. Internal oxidation10.1179/mst.1988.4.12.1072 ↗
23. Alloy oxidation studies related to PWSCC
24. A study on the oxidation behaviour of nickel alloys and the likely effect on PWSCC susceptibility
25. Electrochemical and microstructural characterization of alloy 600 in H2-steam
26. Influence of dissolved hydrogen on structure of oxide film on Alloy 600 formed in primary water of pressurized water reactors10.1080/18811248.2003.9715385 ↗
27. The role of surface films on alloy 600 corrosion in pressurised water reactors
28. PWSCC of Alloy 600: a parametric study of surface film effects
29. Influence of oxide films on primary water stress corrosion cracking initiation of alloy 60010.1016/j.jnucmat.2005.10.002 ↗
30. Oxidation of Ni base alloys in PWR water: oxide layers and associated damage to the base metal
31. Solution annealed and thermally treated alloy 600 preferential intergranular oxidation: a comparison
32. Oxidation of alloy 600 and alloy 690: experimentally accelerated study in hydrogenated supercritical water metallurgical and materials
33. Linking grain boundary microstructure to stress corrosion cracking of cold-rolled alloy 690 in pressurized water reactor primary water10.5006/0808 ↗
34. Internal oxidation of alloy 690 in hydrogenated steam10.1016/j.corsci.2014.11.006 ↗
35. Nanoscale precursor sites and their importance in the prediction of SCC failure
36. Mechanism for diffusion induced grain boundary migration10.1016/0001-6160(81)90073-0 ↗
37. Diffusion induced grain boundary migration10.1179/095066087790150304 ↗
38. Accelerated stress corrosion crack initiation of alloys 600 and 690 in hydrogenated supercritical water10.1007/s11661-016-3898-4 ↗
39. Grain boundary depletion and migration during selective oxidation of Cr in a Ni–5Cr binary alloy exposed to high-temperature hydrogenated water10.1016/j.scriptamat.2014.06.022 ↗
40. L. Volpe, M.G. Burke, F. Scenini, The Role of the Grain Boundary Migration on the Preferential Intergranular Oxidation and SCC of Alloy 600, Acta Mater. (in preparation).
41. Replicating PWR primary water conditions in low pressure H2-steam environment to study alloy 600 oxidation processes10.1149/2.0081902jes ↗
42. Effect of machining on stress corrosion crack initiation in warm-forged type 304L stainless steel in high temperature water10.1016/j.actamat.2018.11.046 ↗
43. Effect of surface preparation on intergranular stress corrosion cracking of alloy 600 in hydrogenated steam10.5006/1.3279916 ↗
44. Effect of thermal ageing on creep and oxidation behaviour of Type 316H stainless steel10.1179/1878641315Y.0000000005 ↗
45. 3D analysis of surface treatment effects on the oxidation of grain boundaries in alloy 600
46. Selective internal oxidation as a mechanism for intergranular stress corrosion cracking of Ni-Cr-Fe alloys10.1007/s11661-007-9124-7 ↗
47. Fiji: an open-source platform for biological-image analysis10.1038/nmeth.2019 ↗
48. ImageJ2: ImageJ for the next generation of scientific image data10.1186/s12859-017-1934-z ↗
49. An atom probe tomography study of internal oxidation processes in Alloy 60010.1016/j.actamat.2016.02.054 ↗
50. Grain boundary oxidation and stress corrosion cracking in nickel-base alloys strained in supercritical water
51. Internal oxidation and embrittlement of alloy 600
52. Measurement of the nickel/nickel oxide transition in Ni-Cr-Fe alloys and updated data and correlations to quantify the effect of aqueous hydrogen on primary water SCC
53. The, Oxidation studies of alloy 600 in low pressure hydrogenated steam
54. Galerie · 2010 · 583
55. Diffusion-coupled cohesive interface simulations of stress corrosion intergranular cracking in polycrystalline materials10.1016/j.actamat.2017.06.058 ↗
56. Diffusion induced grain boundary migration10.1016/0036-9748(79)90078-4 ↗
57. Stress corrosion crack initiation in Alloy 690 in high temperature water10.1016/j.cossms.2018.02.001 ↗
58. Observation and quantification of the diffusion-induced grain boundary migration ahead of SCC crack tips10.1016/j.corsci.2018.11.019 ↗
59. Advanced TEM characterization of stress corrosion cracking of Alloy 600 in pressurized water reactor primary water environment10.1016/j.jnucmat.2009.06.014 ↗
60. Examinations of oxidation and sulfidation of grain boundaries in alloy 600 exposed to simulated pressurized water reactor primary water10.1017/S1431927613000421 ↗
61. Diffusion processes as a possible mechanism for Cr depletion at SCC crack
62. Diffusion in migrating interfaces10.1016/0001-6160(78)90095-0 ↗
63. Chemically induced grain boundary migration10.1016/0001-6160(78)90132-3 ↗
64. Gleeson · 2010 · 180
65. Kubaschewski · 1980
66. Another way to think about the critical oxide volume fraction for the internal-to-external oxidation transition?10.5006/1.3278509 ↗