Spray parameter optimization and tribological properties of thermally sprayed quasicrystalline and partially quasicrystalline coatings

Erja Turunen (Corresponding Author), Tommi Varis, Kari Vierimaa, Simo-Pekka Hannula

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Good tribological properties and low coefficient of friction have previously been reported for thermally sprayed quasicrystalline coatings. In this paper HVOF spray parameter optimization and tribological properties of quasicrystalline coatings, manufactured from three different compositions, is discussed. On-line diagnostics measurements and splat studies were performed to optimize spray parameters of HVOF. Quasicrystalline coatings were produced and the coating microstructure was analysed. Large amount of wear and friction tests were performed to determine the tribological properties of quasicrystalline coating. Relatively high values of the coefficient of friction were obtained in the PoD-test. These tests yielded friction values varying typically between 0.4–0.6 independent of the counter material.
Original languageEnglish
Pages (from-to)293-303
Number of pages11
JournalProceedings of the Estonian Academy of Sciences. Engineering
Volume9
Issue number4
Publication statusPublished - 2003
MoE publication typeA1 Journal article-refereed
Event12th International Baltic Conference on Engineering Materials and Tribology, BALTMATTRIB-2003 - Tallinn, Estonia
Duration: 2 Oct 20033 Oct 2003

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