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Analysis of stress corrosion cracking of heterogeneous welded joints in simulated primary water environment


Marek Kudláč1

Mária Dománková1

Peter Brziak2

Alena Košinová2

Matúš Gavalec1

Katarína Bártová1

1Faculty of Materials Science and Technology in Trnava, Slovak University of Technology in Bratislava, J. Bottu 2781/25, 917 24 Trnava, Slovakia
2Research and Development Division of Welding Technologies and Equipment, Welding Research Institute, Račianska 1523, 831 02 Nové Mesto, Bratislava, Slovakia

Received: 9 March 2024
Revised: 19 Apil 2024
Accepted: 20 May 2024
Published: 30 June 2024


The paper deals with the stress corrosion cracking of heterogeneous welded joints. The welded joints were made of austenitic base metal (AISI 321) and ferritic weld metal by arc welding. Two methods were used to analyze the stress corrosion cracking of samples of this type of welded joint. The first method was a slow strain rate test (SSRT) using a tabletop device at a temperature of 60°C with a graded strain rate for three specimens (10−5, 10−6, and 10−7 1/s). The second method was exposure in a corrosion autoclave at a temperature of 270°C and pressure of 12.26 N/mm2, while prestressing devices were used to achieve the prestressing at the level of yield strength and 3% plastic deformation. One specimen was bent to 60°. Boric acid solutions were used as the medium, which was supposed to simulate the environment of the primary circuit of nuclear power plants, a type of water-water energetic reactor. The surface and the presence of corrosion products, cracks, fractures, or pits on specimens were monitored using scanning electron microscopy, stereomicroscopy, confocal microscopy, and light microscopy. A gravimetric analysis was performed, as well, to determine the corrosion rate after exposure to the autoclave.


Stress corrosion cracking, Welded joints, Autoclave, Corrosion, Primary water


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© 2024 by the authors. This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0)

Volume 9
Number 1
March 2024

Last Edition

Volume 9
Number 1
March 2024

How to Cite

M. Kudláč, M. Dománková, P. Brziak, A. Košinová, M. Gavalec, K. Bártová, Analysis of Stress Corrosion Cracking of Heterogeneous Welded Joints in Simulated Primary Water Environment. Applied Engineering Letters, 9(2), 2024: 76-84.

More Citation Formats

Kudláč, M., Dománková, M., Brziak, P., Košinová, A., Gavalec, M., & Bártová, K. (2024). Analysis of Stress Corrosion Cracking of Heterogeneous Welded Joints in Simulated Primary Water Environment. Applied Engineering Letters, 9(2), 76-84.

Kudláč, Marek, et al. “Analysis of Stress Corrosion Cracking of Heterogeneous Welded Joints in Simulated Primary Water Environment.“ Applied Engineering Letters, vol. 9, no. 2, 2024, pp. 76-84.

Kudláč, Marek, Mária Dománková, Peter Brziak, Alena Košinová, Matúš Gavalec, and Katarína Bártov. 2024. “Analysis of Stress Corrosion Cracking of Heterogeneous Welded Joints in Simulated Primary Water Environment.“ Applied Engineering Letters, 9 (2): 76-84.

Kudláč, M., Dománková, M., Brziak, P., Košinová, A., Gavalec, M. and Bártová, K. (2024). Analysis of Stress Corrosion Cracking of Heterogeneous Welded Joints in Simulated Primary Water Environment. Applied Engineering Letters, 9(2), pp. 76-84.
doi: 10.46793/aeletters.2024.9.2.2.