Abstract: In this paper, the influence of cationic electrolytes composition on electrical and optical responses of plasma electrolytic oxidation process of A1050 aluminum alloy under alternating polarization is considered. The electrolytes consist of 0.1 M boric acid with addition of one of the following hydroxides: LiOH, NaOH, KOH, tetraethylammonium hydroxide, Ca(OH)2 up to pH value 9.2. Coatings microstructure, elemental and phase compositions were studied by SEM, EDS and XRD. It was shown that the hysteresis of anodic current-voltage curve (specific feature of “Soft sparking” PEO) was clear observed in the presence of sodium and potassium cations. It was found that composition of microdischarges plasma is also affected by the nature of the cations. It was shown that there are a number of reciprocal processes, which take place under anodic and cathodic polarization.

Cite: Rogov A.B. , Shayapov V.R.
The role of cathodic current in PEO of aluminum: Influence of cationic electrolyte composition on the transient current-voltage curves and the discharges optical emission spectra
Applied Surface Science. 2017. V.394. P.323-332. DOI: 10.1016/j.apsusc.2016.10.115 WOS Scopus РИНЦ OpenAlex

Dates:

Submitted:	Aug 17, 2016
Published online:	Oct 19, 2016

Identifiers:

Web of science:	WOS:000389152900037
Scopus:	2-s2.0-84993960961
Elibrary:	28275447
OpenAlex:	W2534242976

Citing:

DB	Citing
OpenAlex	50
Scopus	45
Web of science	45
Elibrary	45

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