Effect of Structure of Aluminum-Silicon Alloys on the Process of Formation and Characteristics of Oxide Layer in Microarc Oxidizing

Krishtal, M. M.

doi:10.1023/b:msat.0000049810.75325.f9

Cited by 27 publications

(14 citation statements)

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“…There is circumstantial evidence of these conclusions in the paper. 8) In this paper, data indicating that the coating thickness on the aluminum surface section was higher than that on the surface of the silicon particles were registered. Figure 8 shows the phase compositions of the coating layers for different durations of the microplasma process.…”

Section: 2mentioning

confidence: 74%

“…8,10) An explanation for this was found in the following reference: 8) ''The hindering of the growth of the oxide layer by silicon particles in the microarc oxidation of aluminum-silicon alloys is caused by the higher electrical resistivity of silicon with respect to the aluminum matrix.'' This also means that the voltage for the microplasma process of the Al-Si alloy must be higher where the silicon content is high than where it is low.…”

Section: 2mentioning

confidence: 99%

“…8) It is believed that another effect of cathodic currents that was not considered in reference 6) takes place at AC polarization and results in the synthesis of specific amorphous oxide-hydroxide layers under a primary coating.…”

Section: The Effect Of Process Parameters and Alloy Composition On Thmentioning

confidence: 99%

“…Since then, the MEP (the so-called PEO (plasma electrolytic oxidation) 6) ) has been in the spotlight all over the world. The dependence of the coating characteristics on alloy composition are known, 7,8) but such data are incomplete and rudimentary because less data are available on AC polarization than on DC polarization. Systematic investigations are needed to develop the models and theories that may forecast new coating properties using AC polarization.…”

Section: Introductionmentioning

confidence: 99%

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The Dependence of Coating Characteristics on Progress Parameters and Alloy Compositions

Terleeva

et al. 2005

Mater. Trans.

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The coating characteristics on the surfaces of the aluminum alloys A1230, A2017, Al-7.6 mass%Si, and Al-10.4 mass%Si formed at AC polarization were investigated. The intervals of current densities and process durations were checked, and data consisting of coating thickness and increases in size and weight were obtained. The presence of the high-temperature aluminum oxide phases, which provide high physicalmechanical coating characteristics, was registered with the help of the Bruker D8 Advanced X-ray diffractometer.

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Section: 2mentioning

confidence: 74%

Section: 2mentioning

confidence: 99%

Section: The Effect Of Process Parameters and Alloy Composition On Thmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Dependence of Coating Characteristics on Progress Parameters and Alloy Compositions

Terleeva

et al. 2005

Mater. Trans.

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“…As a result during MAO interaction of Al and oxygen becomes difficult. In those parts where silicon comes out on the surface, coating is not formed or its quality is unsatisfactory -no very hard oxides are formed [11,12].…”

Section: Discussionmentioning

confidence: 99%

Influence of Al-Si alloy microstructure on the corrosion resistance of coatings formed by the microarc oxidation method

2017

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Abstract. The impact of the high-silicon aluminum alloy initial microstructure on the quality of the coating formed by microarc oxidation (MAO) has been studied. The MAO treatment is applied to AK12D samples in the initial coarse-grained state and after high pressure torsion. The following coating properties are studied: thickness, microhardness, porosity and corrosion resistance. It is established that the MAO layers properties depend on the base microstructure much. High pressure torsion applied to AK12D samples before MAO results in increase of the coating thickness by ∼ 2 times. The microhardness of coatings reduces and their corrosion resistance degrades by ∼ 10 times.

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Inherited chemical inhomogeneity in oxide layers deposited by the method of microarc oxidizing on hypereutectic silumins

Krishtal

Ryumkin

2007

Met Sci Heat Treat

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Effect of Structure of Aluminum-Silicon Alloys on the Process of Formation and Characteristics of Oxide Layer in Microarc Oxidizing

Cited by 27 publications

References 0 publications

The Dependence of Coating Characteristics on Progress Parameters and Alloy Compositions

The Dependence of Coating Characteristics on Progress Parameters and Alloy Compositions

Influence of Al-Si alloy microstructure on the corrosion resistance of coatings formed by the microarc oxidation method

Inherited chemical inhomogeneity in oxide layers deposited by the method of microarc oxidizing on hypereutectic silumins

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