Effect of Different Organic Additives on Surface Morphology and Microstructure of Zn-Mo Coatings Electrodeposited from Citrate Baths

• Autorzy: Hara A. , Kazimierczak H. , Bigos A. , Świątek Z. , Ozga P.

Identyfikatory

DOI

10.24425/amm.2019.126240

• Języki publikacji: EN

Abstrakty

EN

The effect of cationic, anionic and nonionic surface active additives, organic compounds and polymers on the electrodeposition of Zn-Mo coatings on steel substrate and detailed characterization in chosen optimal conditions was studied. The influence of polyethylene glycol (PEG) various concentration, sodium dodecyl sulphate (SDS), triton X-100, d-sorbitol, cetyl trimethyl ammonium bromide (CTAB), thiourea and disodium ethylenediaminetetraacetate (EDTA) on the electrodeposition process was examined. The composition of deposits was defined by wavelength dispersive X-ray fluorescence spectrometry (WDXRF). Results has shown that the current efficiency of the electrodeposition of Zn-Mo coatings is 71.4%, 70.7%, 66.7% for 1.5 g/dm³ PEG 20000, 0.1 g/dm³ Triton X-100 and 0.75 M D-sorbitol respectively. The surface topography and roughness of selected coatings on steel was investigated by atomic force microscopy (AFM). The attendance of D-sorbitol of 0.75 M in the solution cause clear reduction of grain size and the value of roughness parameter (Ra) in relation to SDS, PEG, Triton X-100 and the sample prepared without the additives. The morphology of electrodeposited layers was studied by scanning electron microscopy (SEM). The addition of selected additives to the electrolytic bath results in the formation of smoother, brighter and more compact Zn-Mo coatings in comparison to layers obtained from similar electrolytes but without the addition of surfactants. The optimal concentration of the most effective additives such as PEG 20000, Triton X-100 and D-sorbitol is 1.5 g/dm³, 0.1 g/dm³, 0.75 M respectively.

Słowa kluczowe

EN

zinc-molybdenum alloy; citrate bath; electrodeposition; organic additives

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 1
• Strony: 207--220
• Opis fizyczny: Bibliogr. 37 poz., fot., rys., tab., wzory

Twórcy

autor

Hara A.

• Institute of Metallurgy and Material Science, Polish Academy of Sciences, 25 Reymonta Str., 30-059 Kraków, Poland

autor

Kazimierczak H.

• Institute of Metallurgy and Material Science, Polish Academy of Sciences, 25 Reymonta Str., 30-059 Kraków, Poland

autor

Bigos A.

• Institute of Metallurgy and Material Science, Polish Academy of Sciences, 25 Reymonta Str., 30-059 Kraków, Poland

autor

Świątek Z.

• Institute of Metallurgy and Material Science, Polish Academy of Sciences, 25 Reymonta Str., 30-059 Kraków, Poland

autor

Ozga P.

• Institute of Metallurgy and Material Science, Polish Academy of Sciences, 25 Reymonta Str., 30-059 Kraków, Poland

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Uwagi

EN

1. This work was supported by projects: POIG-01.01.02-00-015/09-00 (ZAMAT) and IMIM PAS Z1 (Environment friendly technologies and materials). We acknowledge Dr R. Kowalik and Dr P. Zabinski for enabling us to carry out WDXRF measurements at AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Cracow, Poland.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).