CORROSION RESISTANCE OF LASER CLADDED NiCrBSi COMPOSITE COATINGS

Authors

  • Iosif HULKA Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University, Timișoara, Romania. Email: hulka_iosif@yahoo.com. https://orcid.org/0000-0001-5442-0631
  • Viorel-Aurel ȘERBAN Center of Research for Processing and Characterization of Advanced Materials, Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University, Timișoara, Romania. Email: viorel.serban@upt.ro. https://orcid.org/0000-0002-0457-4269
  • Ion-Dragoș UȚU Department of Materials and Fabrication Engineering, Politehnica University, Timișoara, Romania. Email: dragos.utu@upt.ro. https://orcid.org/0000-0003-4584-0364
  • Narcis Mihai DUŢEANU Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University, Timișoara, Romania. Email: narcis.duteanu@upt.ro. https://orcid.org/0000-0002-5015-9306
  • Adrian Marius PASCU Department of Industrial Machinery and Equipments, Faculty of Engineering, "Lucian Blaga" University, Sibiu, Romania. Email: adrian.pascu@ulbsibiu.ro. https://orcid.org/0000-0001-8720-138X
  • Ionuț Claudiu ROATĂ Department of Materials Engineering and Welding, Transilvania University, Brașov, Romania. Email: ionut.roata@unitbv.ro. https://orcid.org/0000-0003-1429-9261

Keywords:

laser cladding, powders, coatings, corrosion, NiCrBSi

Abstract

NiCrBSi powders were deposited on medium alloy steel substrate using laser cladding process and electrochemically tested at room temperature by immersing the specimens in 3.5% NaCl solution in order to study their corrosion behavior. The coatings were obtained using different cladding parameters like scanning speed and overlap percentage. Investigations techniques such as scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) measurements were employed to study the microstructure and chemical properties of the coatings. It was found that the microstructural characteristic and corrosion behavior are linked to coatings thickness, dilution and diffusion of Fe within the coating.

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STUDIA UBB CHEMIA, Volume 60 (LX), No. 4, September 2015

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Published

2015-12-30

How to Cite

HULKA, I. ., ȘERBAN, V.-A. ., UȚU, I.-D. ., DUŢEANU, N. M., PASCU, A. M. ., & ROATĂ, I. C. . (2015). CORROSION RESISTANCE OF LASER CLADDED NiCrBSi COMPOSITE COATINGS. Studia Universitatis Babeș-Bolyai Chemia, 60(4), 173–184. Retrieved from https://studia.reviste.ubbcluj.ro/index.php/chemia/article/view/8505

Issue

Volume 60, No. 4, 2015

Section

Articles

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Copyright (c) 2015 Studia Universitatis Babeș-Bolyai Chemia

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