What is it about?

This article highlights the continuation of the research, firstly described in the article by Heikki Sarjas, Priit Kulu, Kristjan Juhani, Mart Viljus, Ville Matikainen, and Petri Vuoristo, entitled "Wear resistance of HVOF sprayed coatings from mechanically activated thermally synthesized Cr3C2–Ni spray powder" (Proceedings of the Estonian Academy of Sciences, vol. 65(2) (2016), pp. 101-106; doi 10.3176/proc.2016.2.10). This article focuses on the room and elevated temperature erosion wear of the high velocity oxy-fuel sprayed (HVOFS) coatings, produced from commercially available and experimental (produced by mechanically activated synthesis, or MAS) Cr3C2-Ni powders, which were first introduced in the article above.

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Why is it important?

This article presents the more extended research, than was done in the article, published in the Proceedings. Moreover, it shows that the first results on the coatings from experimental powder, demonstrated in the above-mentioned article, were too optimistic (coatings from experimental powder exhibit a significantly lower wear resistance, than ones from the commercial powder, under the wide range of erosive wear conditions). The current paper also reveals some possible reasons for a lower wear resistance of the coatings from the experimental powder.


This publication shows that more work should be done about the structure of the experimental powders, as the currently obtained powders aren't very suitable for thermal spraying applications, and sprayed coatings from them exhibit a remarkably lower quality.

Mr. Andrei G. Surzhenkov
Tallinn University of Technology

Read the Original

This page is a summary of: Abrasive-Erosive Wear of Thermally Sprayed Coatings from Experimental and Commercial Cr3C2-Based Powders, Journal of Thermal Spray Technology, September 2017, Springer Science + Business Media,
DOI: 10.1007/s11666-017-0638-2.
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