Investigation, Modeling and Design of a Cathodic Protection System for Hull Structures in Marine Environment

Aksu, R.
Uguz, R. O.
Meco, H.
Karakaya, İshak
The corrosion behaviors of metallic components from hull structures of an amphibious vehicle in seawater were investigated. Selected steel types and aluminum alloys were subjected to accelerated corrosion tests in artificial seawater to collect data for simulation of cathodic protection with sacrificial anodes. The electrochemical data obtained via potentiostatic tests were used to simulate cathodic protection of the metallic components under seawater. Potential distributions in marine environment were evaluated to design the cathodic protection system that could impress the currents. Random paint deficient areas on a steel and aluminum components were created to test the protection performance of sacrificial anodes on the damaged surfaces.


LI, W; KAKAC, S; HATAY, FF; OSKAY, R (Springer Science and Business Media LLC, 1993-01-01)
An experimental apparatus was designed, built and used to study the behavior of transient forced convection in a rectangular duct with and without barriers due to a sinusoidal heat input at the inlet. to simulate the electric heating and cooling inside the computer. A wide range of Reynolds number (400 less-than-or-equal-to Re less-than-or-equal-to 20,000) and inlet frequencies (0.01 Hz less-than-or-equal-to beta less-than-or-equal-to 0.08 Hz) was covered in this experimental study for both laminar and turb...
Assessment of a frequency-domain linearised Euler solver for turbofan aft radiation predictions and comparison with measurements
Özyörük, Yusuf (2010-03-31)
This paper presents a frequency-domain computational aeroacoustics tool for predicting aft noise radiation through turbofan ducts and jets and its application to two realistic engine exhaust configurations which have been experimentally tested. The tool is based on the discretised axisymmetric form of the linearised Euler equations in conjunction with perfectly matched layer equations at the inlet and far-field boundaries using high-order finite differences. The resultant linear system of equations is inver...
Electropolishing of an Fe-Ni-Co Alloy in Acetic Acid-Perchloric Acid Mixture
Aksu, Yasemin; ERDOĞAN, METEHAN; Demirci, Gokhan; Karakaya, İshak (2016-06-02)
Among Fe-Ni-Co alloys, Kovar (53%Fe-29%Ni-17%Co) designated as ASTM F-15 (1), is a well-known glass-sealing alloy. It is also classified as low–expansion alloy (2). Low expansion is required to avoid internal stresses in applications that involve strong ceramic to metal joining such as in vacuum systems (3-6). Electropolishing is applied to obtain smooth metallic surfaces to gain low outgassing rates from the chamber walls in vacuum applications (7-9). The effects of current density, perchloric acid concent...
An experimental study of residual fiber strains in Ti-15-3 continuous fiber composites
Pickard, S.M.; Miracle, D.B.; Majumdar, B.S.; Kendig, K.L.; Rothenflue, L.; Çöker, Demirkan (Elsevier BV, 1995-01-01)
A simplified experimental technique to determine the axial fiber residual strain in continuously-reinforced metal matrix composites is described. The residual fiber strains in two Ti-15V-3Cr-3Al-3Sn/SiC metal matrix composites have been measured with this technique. Residual fiber strains on the order of 0.2% are measured in the as-processed condition, and the residual stresses approach zero after testing the composite in tension to failure at room temperature. A conceptual description of the effect of tens...
ORCAN, Y (Elsevier BV, 1994-06-01)
The exact solution of the distribution of stress and deformation in an elastic-perfectly plastic cylindrical rod with uniform internal heat generation under generalized plane strain condition is presented. The treatment is based on Tresca's yield condition and the associated flow rule. The stress image points of the outer and inner plastic regions lie on two different edges of Tresca prism. With increasing heat generation parameter, the image points of the intermediate regions spread out through two side re...
Citation Formats
R. Aksu, R. O. Uguz, M. ERDOĞAN, H. Meco, and İ. Karakaya, “Investigation, Modeling and Design of a Cathodic Protection System for Hull Structures in Marine Environment,” 2016, vol. 72, Accessed: 00, 2020. [Online]. Available: