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Materials 2016, 9(3), 204; doi:10.3390/ma9030204

Cavitation Erosion of Cermet-Coated Aluminium Bronzes

1
Department of Materials and Manufacturing Engineering, Politehnica University of Timisoara, 300026 Timisoara, Romania
2
Department of Mechanical Machines, Equipments and Transportation, Politehnica University of Timisoara, 300026 Timisoara, Romania
*
Author to whom correspondence should be addressed.
Academic Editor: Peter J. Uggowitzer
Received: 22 January 2016 / Revised: 9 March 2016 / Accepted: 10 March 2016 / Published: 17 March 2016
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Abstract

The cavitation erosion resistance of CuAl10Ni5Fe2.5Mn1 following plasma spraying with Al2O3·30(Ni20Al) powder and laser re-melting was analyzed in view of possible improvements of the lifetime of components used in hydraulic environments. The cavitation erosion resistance was substantially improved compared with the one of the base material. The thickness of the re-melted layer was in the range of several hundred micrometers, with a surface microhardness increasing from 250 to 420 HV 0.2. Compositional, structural, and microstructural explorations showed that the microstructure of the re-melted and homogenized layer, consisting of a cubic Al2O3 matrix with dispersed Ni-based solid solution is associated with the hardness increase and consequently with the improvement of the cavitation erosion resistance. View Full-Text
Keywords: cavitation erosion; bronze-alloys; plasma spray; oxide; metal; laser remelting cavitation erosion; bronze-alloys; plasma spray; oxide; metal; laser remelting
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Mitelea, I.; Oancă, O.; Bordeaşu, I.; Crăciunescu, C.M. Cavitation Erosion of Cermet-Coated Aluminium Bronzes. Materials 2016, 9, 204.

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