Publications in Scientific Journals:
P. Linhardt:
"Unusual corrosion of nickel-aluminium bronze in a hydroelectric power plant";
Materials and Corrosion,
66
(2015),
12;
1536
- 1541.
English abstract:
Localized phase selective corrosion of turbine runners made from the bronze CuAl10Fe5Ni5 was observed in a hydroelectric power plant. Routine investigation of the corrosion system did not provide a satisfactory explanation for this specific type of corrosion which seems uncommon to occur in freshwater. Corrosion potential measurements of the stainless steel runner rings, galvanically coupled to the runners, indicated ennoblement, creating an
effective galvanic couple driving the bronze to corrode. This mechanism was verified by on-site, in situ electrochemical experiments. Biofilm formation by diatoms was identified as the cause of ennoblement.
Keywords:
bronze, microbially influenced corrosion, hydroelectric power plant
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1002/maco.201508323
Created from the Publication Database of the Vienna University of Technology.