Development of high performance aluminium alloy sacrificial anodes reinforced with metal oxides

Shibli, S.M.A.; Jabeera, B.; Manu, R.

doi:10.1016/j.matlet.2006.10.062

Cited by 40 publications

(21 citation statements)

References 6 publications

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“…So many researches pay attention to improving the electrochemical properties of Al-Zn-In alloys [2,3]. Some alloy elements are usually added, which can be very effective [4,5]. The Al-Zn-In-Mg-Ti series anodes have become popular in China [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Corrosion analysis of Al–Zn–In–Mg–Ti–Mn sacrificial anode alloy

Wen

2010

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Corrosion analysis of Al–Zn–In–Mg–Ti–Mn sacrificial anode alloy

Wen

2010

Journal of Alloys and Compounds

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“…Among all the MnO 2 -incorporated anodes, 0.5% MnO 2 exhibited the least value, which is in accordance with the results of OCP decay and polarization studies. The reduction in self corrosion values may be attributed to reduction in grain boundary corrosion due to better grain refinement [20]. Thus it is clear that the inclusion of MnO 2 suppresses the self corrosion of Al-Zn sacrificial anodes.…”

Section: Self Corrosionmentioning

confidence: 98%

“…The inclusion of metal oxides can improve the grain boundaries, suppressing grain boundary corrosion. The oxides of Al and Mn have been used for the fabrication of high wear resistance sacrificial anodes [20][21][22]. Similarly SiO 2 , ZrO 2 and CeO 2 have been used to reinforce the Al matrix [23,24].…”

Section: Introductionmentioning

confidence: 99%

Development of MnO2-incorporated high performance aluminum alloy matrix sacrificial anodes

Shibli

Binoj

2008

J Appl Electrochem

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Manganese dioxide, a potential catalyst in many electrochemical reactions, was explored as an effective activator in Al ? 5% Zn alloy sacrificial anodes. The catalytic influence of MnO 2 on the anodes was microstructurally and electrochemically characterized using different electrochemical techniques. The process of incorporation of MnO 2 not only improved the grain size but also the galvanic performance of the anodes significantly. A galvanic performance as high as 80% was achieved by incorporating an optimum quantity (0.5%) of MnO 2 in the anode matrix. High and steady active open circuit potential, very low polarization and substantial reduction in self corrosion were achieved during galvanic exposure tests. Effective activation of the anodes by MnO 2 was also revealed by the results of electrochemical impedance analysis. The tolerance to biofouling on the anode surface was studied by quantifying the number of micro-organisms on the anode surface after immersing in natural sea water containing the micro-organisms.

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“…J.-L. Ma [4] and S.M.A. Shibli [5], et al studied the principle for alloy steel corrosion. B.-R. Hou [6] has conducted a great deal of experimental research on the characteristics of metal corrosion and systematically studied the marine corrosion theory.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of Localized Corrosion of Steel Pipe Pile Foundation for Offshore Wind Turbines and Corrosive Action

Wang¹,

Zhan-qiang²,

Zhao³

2016

TOCIEJ

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The wind turbine foundation serves as a permanent construction in the harsh marine corrosive environment, its anticorrosion design is essential to the safe use of the wind turbine structure. At present, there is a significant controversy over the local corrosion mechanism (such as pitting corrosion, and crevice corrosion) and its diffusion mechanism in the academic circle. In the paper, the Faraday electrochemistry formula was used to compute the local corrosion degree of the steel pipe pile for the wind turbine and obtain the general corrosion equivalent. The local corrosion effect of the offshore steel pipe pile for the wind turbine was converted into homogeneous corrosion thickness loss of certain length, and then the ultimate strength of the offshore steel pipe pile foundation for the wind turbine was analyzed under the conditions of local corrosion. The result indicates that the maximum ultimate strength reductionof the steel pipe pile for the wind turbine induced by the local corrosion in the splash zone is 80.8% of the noncorrosive ultimate strength. The maximum ultimate strength reduction of the steel pipe pile for the wind turbine induced by the local corrosion in the continuous immersion zone is 63% of the non-corrosive ultimate strength. Once the local corrosion rate in the splash zone exceeds 10%, the ultimate strength of the steel pipe pile for the wind turbine will exhibit a negative exponential decrease. The local corrosion in the continuous immersion zone has a huge effect on its ultimate strength. There are no significant signs of the structural strength loss. The areas prone to local corrosion should be prioritized in anti-corrosion design of the steel pipe pile for the wind turbine.

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Development of high performance aluminium alloy sacrificial anodes reinforced with metal oxides

Cited by 40 publications

References 6 publications

Corrosion analysis of Al–Zn–In–Mg–Ti–Mn sacrificial anode alloy

Corrosion analysis of Al–Zn–In–Mg–Ti–Mn sacrificial anode alloy

Development of MnO2-incorporated high performance aluminum alloy matrix sacrificial anodes

Mechanism of Localized Corrosion of Steel Pipe Pile Foundation for Offshore Wind Turbines and Corrosive Action

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