The Cr3C2 thermal spray coating on Al-Si substrate

• Autorzy: Richert M. , Książek M. , Leszczyńska-Madej B. , Nejman I. , Grzelka R. , Pałka P.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The objective of this work was to present the changes between the plasma sprayed and high velocity oxy-fuel (HVOF) wear Cr3C2 resistant coats. The differences in microstructure and microhardness of coatings were investigated. The characterization of fully melted, un- melted and partly melted areas was performed. Design/methodology/approach: The investigated coats contained very differentiate areas, especially plasma sprayed layers. Systematic investigations of microstructure by using optical, electron scanning microscopy and transmission electron microscopy selected fully melted, un- melted or partly melted areas and their characteristic features were performed. Microhardness of coats was measured and compared with the similar literature results. Findings: Microstructure of plasma sprayed coats was finding as consisting from elongating splats, additionally contained un-melted previous particle of powder and some voids and oxides. Contrary to this the HFOV coatingss were more uniform containing almost equiaxial grains. The microhardness of HFOV coatings was almost two times higher than plasma sprayed ones. Practical implications: The performed investigations provide information, which could be useful in the industrial practice about the essential features of wear resistant plasma sprayed coatings. Originality/value: It was assumed that HVOF coatings have more uniform microstructure, higher microhardness, which could suggests better resistance before the wear and grindability.

Słowa kluczowe

EN

plasma sprayed technique; high velocity oxy-fuel technique; wear-resistant coating; carbide

PL

technika natryskiwania plazmowego; technika szybkich paliw tlenowych; powłoka odporna na ścieranie; węglik

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2010
• Tom: Vol. 38, nr 1
• Strony: 95--102
• Opis fizyczny: Bibliogr. 19 poz., rys., tabl.

Twórcy

autor

Richert M.

autor

Książek M.

autor

Leszczyńska-Madej B.

autor

Nejman I.

autor

Grzelka R.

autor

Pałka P.

• Faculty of Non-Ferrous Metals, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland,

Bibliografia

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