Influence of hydrostatic pressure on pitting of aluminium in sea water

Beccaria, A. M.; Poggi, G.

doi:10.1179/000705985798272632

Cited by 45 publications

(9 citation statements)

References 13 publications

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“…These results suggest that for the time scale of 50 h the influence of hydrostatic pressure only slightly influences interactions of the Al oxide film with Cl − ions and H2O. The corrosion rate is lower than reported by Beccaria et al [78][79][80], suggesting slower kinetics for the reactions involved.…”

Section: Surfaces In Pressurized Liquids: Penetration Of Neutrons Thrcontrasting

confidence: 52%

“…Junghans et al used this capability to study the corrosion of oxidized aluminum (Al) surfaces in pressurized seawater [27]. The corrosion of structural materials in the deep sea depends on numerous chemical and physical factors, including pH, dissolved oxygen, chloride ion activity, salinity, ocean currents, temperature, and hydrostatic pressure [78][79][80][81][82]. Al and its alloys find widespread use in marine environments, including in civil and defense vessels, offshore rigs, drill pipes for deep wells, and diving suits.…”

Section: Surfaces In Pressurized Liquids: Penetration Of Neutrons Thrmentioning

confidence: 99%

“…Al and its alloys find widespread use in marine environments, including in civil and defense vessels, offshore rigs, drill pipes for deep wells, and diving suits. There are several reports on corrosion of Al and its alloys at shallow depths, but investigations at high pressures are limited [78][79][80][82][83][84].…”

Section: Surfaces In Pressurized Liquids: Penetration Of Neutrons Thrmentioning

confidence: 99%

See 2 more Smart Citations

Probing Interfaces in Metals Using Neutron Reflectometry

Demkowicz

Majewski

2016

Metals

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Solid-state interfaces play a major role in a variety of material properties. They are especially important in determining the behavior of nano-structured materials, such as metallic multilayers. However, interface structure and properties remain poorly understood, in part because the experimental toolbox for characterizing them is limited. Neutron reflectometry (NR) offers unique opportunities for studying interfaces in metals due to the high penetration depth of neutrons and the non-monotonic dependence of their scattering cross-sections on atomic numbers. We review the basic physics of NR and outline the advantages that this method offers for investigating interface behavior in metals, especially under extreme environments. We then present several example NR studies to illustrate these advantages and discuss avenues for expanding the use of NR within the metals community.

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Section: Surfaces In Pressurized Liquids: Penetration Of Neutrons Thrcontrasting

confidence: 52%

Section: Surfaces In Pressurized Liquids: Penetration Of Neutrons Thrmentioning

confidence: 99%

Section: Surfaces In Pressurized Liquids: Penetration Of Neutrons Thrmentioning

confidence: 99%

See 1 more Smart Citation

Probing Interfaces in Metals Using Neutron Reflectometry

Demkowicz

Majewski

2016

Metals

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“…It is important that further work is conducted to provide a more extensive corrosion‐map of each of the wrecked aeroplanes so that a unifying corrosion‐model can be developed. In order to predict the life‐time of the submerged aircraft, samples of corroded alloys should be recovered and subjected to full metallurgical analysis and corrosion‐simulation/conservation treatments in a laboratory (Beccaria and Poggi, 1985). The results have shown that the use of in‐situ studies on Second World War aircraft can provide the maritime archaeologists with a valuable non‐destructive technique of assessing this unique heritage resource.…”

Section: Resultsmentioning

confidence: 99%

In-situ Corrosion Studies on Wrecked Aircraft of the Imperial Japanese Navy in Chuuk Lagoon, Federated States of Micronesia

MacLeod

2006

Int J Nautical Archaeology

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A preliminary in-situ corrosion survey of the submerged Japanese WWII aircraft in Chuuk Lagoon, in the Federated States of Micronesia, has provided information on the way in which the wrecks interact with the marine environment. The aircraft are characterised by a lack of encrusting marine organisms and are clearly identifiable. The values of pH and the corrosion potentials vary with depth and the voltage depends on the composition of the underlying metal alloys. It is possible that with additional data from these non-destructive methods techniques it will be possible to provide marine archaeologists with appropriate diagnostic tools.

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“…Pitting corrosion initiation and propagation can be affected by microstructure, chemical composition and the environment [ 2 , 3 ]. Hydrostatic pressure may change metal electrochemical behavior due to environmental effects [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. Beccaria et al [ 4 , 5 , 6 , 7 , 8 ] studied the effects of hydrostatic pressure on corrosion behavior of passive metals using a pressure vessel.…”

Section: Introductionmentioning

confidence: 99%

A Statistical Study on the Effect of Hydrostatic Pressure on Metastable Pitting Corrosion of X70 Pipeline Steel

Yang

Kan

et al. 2017

Materials

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Hydrostatic pressure effects on pitting initiation and propagation in X70 steel are investigated by evaluating metastable pitting probability using electrochemical methods and immersion corrosion tests in containing chlorine ion solution. Potentiodynamic tests indicated that hydrostatic pressure can decrease the breakdown potential and lead to a reduced transpassivity region. Metastable test results revealed that hydrostatic pressure can increase metastable pitting formation frequency and promote stabilization of metastable pitting growth. Electrochemical impedance spectroscopy (EIS) results indicate that Hydrostatic pressure decreases the charge transfer resistance and increases the dissolution rate within the cavities. Corrosion test results also indicated that pitting initiation and propagation are accelerated by hydrostatic pressure. Result validity was verified by evaluating metastable pitting to predict pitting corrosion resistance.

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Influence of hydrostatic pressure on pitting of aluminium in sea water

Cited by 45 publications

References 13 publications

Probing Interfaces in Metals Using Neutron Reflectometry

Probing Interfaces in Metals Using Neutron Reflectometry

In-situ Corrosion Studies on Wrecked Aircraft of the Imperial Japanese Navy in Chuuk Lagoon, Federated States of Micronesia

A Statistical Study on the Effect of Hydrostatic Pressure on Metastable Pitting Corrosion of X70 Pipeline Steel

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