Journal of Nuclear Science, Engineering and Technology (JONSAT)
In cooperation with the Iranian Nuclear Society

The investigation of corrosion mechanisms in coolant circulation paths of electron accelerators

Document Type : Scientific Note

Authors

M. Asgari 1
M. Golabadi 1
H. Foratirad 2
M.G. Gholami 1
E. Sadeghi 1
R. Amraee 3
S.M. Mosavi 3

1 Leading Material Organization, Nuclear Science and Technology Research Institute, AEOI, P.O.Box: 11365-8486, Tehran – Iran

2 Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, AEOI, P.O.Box: 11365-8486, Tehran – Iran

3 Central Iran Research Complex, Nuclear Science and Technology Research Institute, AEOI, P.O.Box: 89175-389, Yazd – Iran

https://doi.org/10.24200/nst.2020.1155
Abstract
The electron accelerator located at Yazd is working with tap water as cooling. This equipment is made of carbon steel (A37). This steel, as a typical carbon steel, is very susceptible to corrosion destruction in uncontrolled condition. Using tap water as a coolant, has led to high corrosion and thus blocked water circulation paths. XRD and XRF analysis of corrosion products from different parts of accelerator showed that a large quantity of these sediments is composed of Iron Oxide. SEM images indicated that the sediments have a Tubculation morphology. Also, the ICP-OES results showed that in comparison with Yazd tap water, the chemistry of the cooling water circulating in the accelerator has been changed, consequently its hardness decreased by passing time. The results obtained from the Langelier parameter showed that the water exiting from the end of the cooling system is a little corrosive. Due to the color and morphology of corrosion products, the corrosion mechanism is a Tubculation type.

Highlights

1. R. Lillard, D. Pile, D. Butt, The corrosion of materials in water irradiated by 800 MeV protons, Journal of nuclear materials, 278, 277-289 (2000).

 

2. C. White, Laser and electron beam processing of materials, Elsevier (2012).

 

3. T.E. Larson, R. Skold, Current research on corrosion and tuberculation of cast iron, Journal (American Water Works Association), 50, 1429-1432 (1958).

 

4. L. Shreir, 1.05-Basic Concepts of Corrosion, Shreir's Corrosion. Oxford: Elsevier, DOI, 89-100 (2010).

 

5. D. Landolt, Corrosion and surface chemistry of metals, EPFL Press, (2007).

 

6. D. Parham, C. Tod, Condensed Phosphates in the Treatment of Corrosive Waters, Chemistry & Industry, DOI,  628-631 (1953).

 

7. A. Boiler, P.V. Committee, ASME Boiler and Pressure Vessel Code. Section VIII, Rules for Construction of Pressure Vessels. Division 2. Alternative Rules, American Society of Mechanical Engineers (1980).

 

8. E.W. Barbee, Tuberculation Measurement as an Index of Corrosion and Corrosion Control, Journal (American Water Works Association), 39, 220-230 (1947).

 

9. M. White, R. Dortwegt, S. Pasky, Improved temperature regulation and corrosion protection of APS linac RF components,  Proceedings of the 1999 Particle Accelerator Conference (Cat. No. 99CH36366), IEEE, 1414-1416 (1999).

 

10. D. Ellison, Investigation of pipe cleaning methods, American Water Works Association (2003).

 

11. G. Gedge, Corrosion of cast Iron in potable water service, The Institute of Materials, Corrosion and Related Aspects of Materials for Potable Water Supplies(UK), 1993, DOI, 18-28 (1993).

 

12. M. Edwards, L. Hidmi, D. Gladwell, Phosphate inhibition of soluble copper corrosion by-product release, Corrosion science, 44, 1057-1071 (2002).

 

13. A.A. Olajire, Corrosion inhibition of offshore oil and gas production facilities using organic compound inhibitors-A review, Journal of Molecular Liquids, 248, 775-808 (2017).

 

14. M.R. Cleland, F. Stichelbaut, Radiation processing with high-energy X-rays, Radiation Physics and Chemistry, 84, 91-99 (2013).

 

15. M. Askari, et al, Film former corrosion inhibitors for oil and gas pipelines-A technical review, Journal of Natural Gas Science and Engineering, DOI (2018).

 

16. Awwa Standard for Coal-Tar Epoxy Coating System for thr Interior and Exterior of Steel Water Pipe, Journal (American Water Works Association), 70, 284-288 (1978).

Keywords

Accelerator
Corrosion
XRD
Tubculation
Langelier Index
1. R. Lillard, D. Pile, D. Butt, The corrosion of materials in water irradiated by 800 MeV protons, Journal of nuclear materials, 278, 277-289 (2000).
 
2. C. White, Laser and electron beam processing of materials, Elsevier (2012).
 
3. T.E. Larson, R. Skold, Current research on corrosion and tuberculation of cast iron, Journal (American Water Works Association), 50, 1429-1432 (1958).
 
4. L. Shreir, 1.05-Basic Concepts of Corrosion, Shreir's Corrosion. Oxford: Elsevier, DOI, 89-100 (2010).
 
5. D. Landolt, Corrosion and surface chemistry of metals, EPFL Press, (2007).
 
6. D. Parham, C. Tod, Condensed Phosphates in the Treatment of Corrosive Waters, Chemistry & Industry, DOI,  628-631 (1953).
 
7. A. Boiler, P.V. Committee, ASME Boiler and Pressure Vessel Code. Section VIII, Rules for Construction of Pressure Vessels. Division 2. Alternative Rules, American Society of Mechanical Engineers (1980).
 
8. E.W. Barbee, Tuberculation Measurement as an Index of Corrosion and Corrosion Control, Journal (American Water Works Association), 39, 220-230 (1947).
 
9. M. White, R. Dortwegt, S. Pasky, Improved temperature regulation and corrosion protection of APS linac RF components,  Proceedings of the 1999 Particle Accelerator Conference (Cat. No. 99CH36366), IEEE, 1414-1416 (1999).
 
10. D. Ellison, Investigation of pipe cleaning methods, American Water Works Association (2003).
 
11. G. Gedge, Corrosion of cast Iron in potable water service, The Institute of Materials, Corrosion and Related Aspects of Materials for Potable Water Supplies(UK), 1993, DOI, 18-28 (1993).
 
12. M. Edwards, L. Hidmi, D. Gladwell, Phosphate inhibition of soluble copper corrosion by-product release, Corrosion science, 44, 1057-1071 (2002).
 
13. A.A. Olajire, Corrosion inhibition of offshore oil and gas production facilities using organic compound inhibitors-A review, Journal of Molecular Liquids, 248, 775-808 (2017).
 
14. M.R. Cleland, F. Stichelbaut, Radiation processing with high-energy X-rays, Radiation Physics and Chemistry, 84, 91-99 (2013).
 
15. M. Askari, et al, Film former corrosion inhibitors for oil and gas pipelines-A technical review, Journal of Natural Gas Science and Engineering, DOI (2018).
 
16. Awwa Standard for Coal-Tar Epoxy Coating System for thr Interior and Exterior of Steel Water Pipe, Journal (American Water Works Association), 70, 284-288 (1978).
Journal of Nuclear Science, Engineering and Technology (JONSAT)
Volume 41, Issue 3 - Serial Number 93
November 2020
Pages 162-170

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