Microstructure, corrosion and wear resistance evaluation of aluminium matrix composites reinforced by TiC and WC nanoparticles

A. E. Karantzalis, A. Lekatou, A. Evangelou, V. Gousia, C. Miskaki, A. K. Sfikas, D. Sioulas, Z. Gacsi, P. Baumli, G. Kaptay, A. Simon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In the present effort, AMCs reinforced by submicron TiC and WC particles of low (up to 1 vol%) content were produced by casting and compared as far as their microstructure, wear and corrosion response are concerned. Casting was selected as a production method based on the concept: (a) easeto-handle and low cost production route and (b) optimum homogeneity of the reinforcing phase distribution. AMCs were produced through casting route assisted with wetting agents (KBF4, K2TiF6, Na3AlF 6 etc) in order to enhance particle incorporation into the molten matrix. In both cases of particle reinforcement, a uniform particle distribution was observed, mainly characterized by isolated particles and few particle clusters located at the grain interior and boundaries. The nature of the wetting agent seems to influence the degree of particle incorporation, with the K 2TiF6 salt providing the optimum particle insertion and the higher, however, molten matrix - salt reactivity. Primary sliding wear experiments showed a beneficial action of the reinforcing phase on the wear response of the produced composites, irrespectively of the production route adopted. Regarding the aqueous corrosion resistance, the composite behaviour was not altered significantly compared to that of the monolithic matrix indicating the good cohesion of the matrix/reinforcement interfaces.

Original languageEnglish
Title of host publicationEngineering Against Failure - Proceedings of the 3rd International Conference of Engineering Against Failure, ICEAF 2013
PublisherUniversity of Patras, Laboratory of Technology and Strength of Materials
Pages214-222
Number of pages9
ISBN (Print)9789608810433
Publication statusPublished - Jan 1 2013
Event3rd International Conference of Engineering Against Failure, ICEAF 2013 - Kos, Greece
Duration: Jun 26 2013Jun 28 2013

Publication series

NameEngineering Against Failure - Proceedings of the 3rd International Conference of Engineering Against Failure, ICEAF 2013

Other

Other3rd International Conference of Engineering Against Failure, ICEAF 2013
CountryGreece
CityKos
Period6/26/136/28/13

Keywords

  • AMCs
  • Cyclic potentiodynamic polarization
  • Sliding wear
  • Wetting agents

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality

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  • Cite this

    Karantzalis, A. E., Lekatou, A., Evangelou, A., Gousia, V., Miskaki, C., Sfikas, A. K., Sioulas, D., Gacsi, Z., Baumli, P., Kaptay, G., & Simon, A. (2013). Microstructure, corrosion and wear resistance evaluation of aluminium matrix composites reinforced by TiC and WC nanoparticles. In Engineering Against Failure - Proceedings of the 3rd International Conference of Engineering Against Failure, ICEAF 2013 (pp. 214-222). (Engineering Against Failure - Proceedings of the 3rd International Conference of Engineering Against Failure, ICEAF 2013). University of Patras, Laboratory of Technology and Strength of Materials.