Corrosion Behavior of Welded Repaires for Water Turbine Blades

Ciocoiu, Robert; Coman, Razvan; Trante, Octavian; Raiciu, Anca Daniela; Vasile, Mihai; Ciuca, Ion; Navodariu, Nicolae; Cristescu, Ioan

Robert Ciocoiu, Razvan Coman, Octavian Trante, Anca Daniela Raiciu, Mihai Vasile, Ion Ciuca, Nicolae Navodariu, Ioan Cristescu

Corrosion Behavior of Welded Repaires for Water Turbine Blades

Abstract:

The immersed components of hydroelectric power plants are permanently in contact with the water stream and their wear occurs by corrosion, erosion and cavitation. This damage is usually repaired by welding: the procedure is fast and reduces plant downtime. Adopting proper weld procedures are crucial for blade performance and to establish a protocol the following experiment was devised: rectangular samples 600x200x15mm were obtained from a discarded blade used in a hydroelectric power plant and in the median region a 3mm deep groove was milled to simulate erosion damage. The damage was repaired by welding using MIG, WIG, MMAW and oxyacetylene techniques using 136L as filler on cold and preheated at 400ÚC base materials. Specimens from the welded ensembles were obtained and prepared accordingly for corrosion testing. Post corrosion testing studies using the light microscope and scanning electron microscope were performed in order to determine surface damage. At first glance results appear contradictory: the corrosion test results revealed best behavior for MIG weld repairs, on the cold sample, while the corrosion features measured on the exposed area revealed that oxyacetylene welding would be best. Complementary methods are required and currently employed to establish optimum welding procedure parameters for water turbine blade repairs.

Keywords:
water turbine blade; weld repair; corrosion behavior

Issue: 2019, Volume 70, Issue 7

Pages: 2497-2501

Publication date: 2019/8/15

https://doi.org/10.37358/RC.19.7.7368

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
CIOCOIU, R., COMAN, R., TRANTE, O., RAICIU, A.D., VASILE, M., CIUCA, I., NAVODARIU, N., CRISTESCU, I., Corrosion Behavior of Welded Repaires for Water Turbine Blades, Rev. Chim., 70(7), 2019, 2497-2501.

Vancouver
Ciocoiu R, Coman R, Trante O, Raiciu AD, Vasile M, Ciuca I, Navodariu N, Cristescu I. Corrosion Behavior of Welded Repaires for Water Turbine Blades. Rev. Chim.[internet]. 2019 Jul;70(7):2497-2501. Available from: https://doi.org/10.37358/RC.19.7.7368

APA 6th edition
Ciocoiu, R., Coman, R., Trante, O., Raiciu, A.D., Vasile, M., Ciuca, I., Navodariu, N. & Cristescu, I. (2019). Corrosion Behavior of Welded Repaires for Water Turbine Blades. Revista de Chimie, 70(7), 2497-2501. https://doi.org/10.37358/RC.19.7.7368

Harvard
Ciocoiu, R., Coman, R., Trante, O., Raiciu, A.D., Vasile, M., Ciuca, I., Navodariu, N., Cristescu, I. (2019). 'Corrosion Behavior of Welded Repaires for Water Turbine Blades', Revista de Chimie, 70(7), pp. 2497-2501. https://doi.org/10.37358/RC.19.7.7368

IEEE
R. Ciocoiu, R. Coman, O. Trante, A.D. Raiciu, M. Vasile, I. Ciuca, N. Navodariu, I. Cristescu, "Corrosion Behavior of Welded Repaires for Water Turbine Blades". Revista de Chimie, vol. 70, no. 7, pp. 2497-2501, 2019. [online]. https://doi.org/10.37358/RC.19.7.7368

Text
Robert Ciocoiu, Razvan Coman, Octavian Trante, Anca Daniela Raiciu, Mihai Vasile, Ion Ciuca, Nicolae Navodariu, Ioan Cristescu,
Corrosion Behavior of Welded Repaires for Water Turbine Blades,
Revista de Chimie,
Volume 70, Issue 7,
2019,
Pages 2497-2501,
ISSN 2668-8212,
https://doi.org/10.37358/RC.19.7.7368.
(https://revistadechimie.ro/Articles.asp?ID=7368)
Keywords: water turbine blade; weld repair; corrosion behavior

RIS
TY - JOUR
T1 - Corrosion Behavior of Welded Repaires for Water Turbine Blades
A1 - Ciocoiu, Robert
A2 - Coman, Razvan
A3 - Trante, Octavian
A4 - Raiciu, Anca Daniela
A5 - Vasile, Mihai
A6 - Ciuca, Ion
A7 - Navodariu, Nicolae
A8 - Cristescu, Ioan
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2019
VL - 70
IS - 7
SP - 2497
EP - 2501
UR - https://doi.org/10.37358/RC.19.7.7368
KW - water turbine blade
KW - weld repair
KW - corrosion behavior
ER -

BibTex
@article{RevCh2019P2497,
author = {Ciocoiu Robert and Coman Razvan and Trante Octavian and Raiciu Anca Daniela and Vasile Mihai and Ciuca Ion and Navodariu Nicolae and Cristescu Ioan},
title = {Corrosion Behavior of Welded Repaires for Water Turbine Blades},
journal = {Revista de Chimie},
volume = {70},
number = {7},
pages = {2497-2501},
year = {2019},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.19.7.7368},
url = {https://revistadechimie.ro/Articles.asp?ID=7368}
}

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