Nanocomposite chromium coatings on aluminum alloys

• Autorzy: Gidikova N. , Valov R. , Petkov V. , Sułowski M. , Witkowska M. , Cempura G.

Identyfikatory

DOI

10.7356/iod.2017.21

• Języki publikacji: EN

Abstrakty

EN

Chromium coatings modified with nanodiamond particles were deposited on aluminum alloys. The concentration of the nanodiamond particles in the chrome plating electrolyte was from 5 to 25 g/l. The thickness of the layer varied between 30 and 70 μm. The layers were prepared with the same electrolytic conditions and were measured with a metallographic microscope. The maximum microhardness of the coating was 840 kg/mm². X-ray diffraction analysis was performed with a Siemens D500 apparatus using the Bragg-Brentano technique. The distribution of Cr, Al and O in the cross section was studied by SEM-EDS. It was found that the layers were homogenous – only consisted of chromium. The coatings were also studied for non-destructivity by X-ray 3D computed tomography. It was found that the coatings were intact and continuous along the section. In order to obtain the maximum yield of chromium and maximum thickness of the layer, the optimum nanodiamond particle concentration was 10 g/l.

Słowa kluczowe

EN

chromium coating; aluminum; nanodiamond particles; electrochemical plating

• Wydawca: Instytut Odlewnictwa
• Czasopismo: Prace Instytutu Odlewnictwa
• Rocznik: 2017
• Tom: Vol. 57, no. 4
• Strony: 241--244
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Gidikova N.

• Institute of Metal Science, Equipment and Technologies with Hydroaerodynamics Centre “Acad. Angel Balevski” at Bulgarian Academy of Sciences, 67 Shipchenski prohod, 1574 Sofia, Bulgaria

autor

Valov R.

• Institute of Metal Science, Equipment and Technologies with Hydroaerodynamics Centre “Acad. Angel Balevski” at Bulgarian Academy of Sciences, 67 Shipchenski prohod, 1574 Sofia, Bulgaria

autor

Petkov V.

• Institute of Metal Science, Equipment and Technologies with Hydroaerodynamics Centre “Acad. Angel Balevski” at Bulgarian Academy of Sciences, 67 Shipchenski prohod, 1574 Sofia, Bulgaria

autor

Sułowski M.

• AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland

autor

Witkowska M.

• AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland

autor

Cempura G.

• AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland

Bibliografia

• 1. Electroplated aluminum parts and process of production, Morin L.C., A.K. Molnar, USA, 2000, Patent, US 6656606.
• 2. Aball Aal A. 2008. “Hard and corrosion resistant nanocomposite coating for Al alloy”. Materials Science and Engineering: A 424 (1‒2) : 181–187.
• 3. Kalyanasundaram D., P. Molian. 2008. “Electrodeposition of nanodiamond particles on aluminum alloy A319 for improved tribological properties”. Micro & Nano Letters 3 (4) : 110‒116.
• 4. Phase Diagrams Metal Systems (Диаграммы состояния металлических систем), Metallurgia, Moscow, 1994.
• 5. Gidikova N., A. Cias, V. Petkov, M. Madej, M. Sułowski, R. Valov. 2014. “Wear resistant chromium coatings modified with diamond nanoparticles”. Archives of Metallurgy and Materials 59 (4) : 1513‒1516.

Uwagi

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