Manufacturing Technology 2021, 21(1):76-82 | DOI: 10.21062/mft.2021.009

Composite laser claddings for corrosion protection of outer surfaces of storage containers for spent nuclear fuel in underground repositories

Pavla Bartoň Klufová1, Antonín Kříž1, Duliškovič Josef1, Marek Vostřák2
1 Faculty of Mechanical Engineering, University of West Bohemia. Univerzitní 2732/8, 306 14 Pilsen. Czech Republic
2 New Technologies – Research Center, University of West Bohemia. Univerzitní 2732/8, 306 14 Pilsen. Czech Republic

The present contribution examines the structures of and corrosion processes in copper-basalt composite laser claddings on a steel substrate. The cladding material was a laboratory mixture of the following components: Oerlikon METCO 55 (Cu > 99.9 %) + basalt dust. In this investigation, metallographic structures of copper-basalt composite laser claddings were studied using optical and scanning electron microscopy. The adhesion of the claddings to the substrate was testing using the non-standardized Mercedes test. A potentiodynamic corrosion test in artificial mine water was performed on a specimen of the composite laser cladding. The test results were compared against those for a reference high-purity copper standard and AISI 304 steel. The findings were interpreted in terms of the potential of using copper-basalt composite laser claddings as corrosion protection coatings on steel components in nuclear power generation.

Keywords: laser cladding; copper; basalt; corrosion test; storage container
Grants and funding:

Grant of the University of West Bohemia – Motivation Scheme POSTDOC 2020.

Received: September 30, 2020; Revised: January 11, 2021; Accepted: January 14, 2021; Prepublished online: February 10, 2021; Published: February 24, 2021  Show citation

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Bartoň Klufová P, Kříž A, Josef D, Vostřák M. Composite laser claddings for corrosion protection of outer surfaces of storage containers for spent nuclear fuel in underground repositories. Manufacturing Technology. 2021;21(1):76-82. doi: 10.21062/mft.2021.009.
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