Composite carbide powders and HVOF sprayed coatings with a plastic matrix

• Autorzy: Formanek B. , Szymański K. , Beliayev A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The paper presents the characterization of powders containing hard phases of chromium and titanium carbides in a plastic matrix, intended for thermal spraying of coatings. The synthesized powder composites containing chromium carbides, produced in high-temperature activated syntheses has been presented. Design/methodology/approach: Commercial materials, such as NiCr- CrxCy, are fabricated by means of technologies applied in powder metallurgy. The influence has been determined of the chemical composition and size analysis of original blends and synthesis processes on the products obtained. The powders NiCr-Cr3C2–TiC and FeCr- Cr 3C2-TiC are manufactured by self-activated high temperature synthesis. The synthesized powders were thermally sprayed by supersonic method in HVOF - Jet Kote II system. The structure and phase composition of the powders and coatings were determined by: scanning microscopy, X-ray phase analysis, energy dispersive X-ray analysis (EDX) and X-ray diffraction analysis. Findings: The structure and application of HVOF sprayed coatings containing chromium and titanium carbides has been presented. Practical implications: The HVOF thermally sprayed coatings are characterized high erosion- corrosion resistance of wear at elevated temperature. Originality/value: The paper presents the characterization of new type of NiCr-Cr 3C2 –TiC and FeCr- Cr3C2-TiC powders.

Słowa kluczowe

EN

powder metallurgy; composite powders; coatings

PL

metalurgia proszków; proszki kompozytowe; powłoki

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 18, nr 1-2
• Strony: 351--354
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Formanek B.

• Faculty of Materials Science and Metalurgy, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland

autor

Szymański K.

• Faculty of Materials Science and Metalurgy, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland

autor

Beliayev A.

• State Scientific Institution “Powder Metallurgy Institute”, 41 Platonov str., 22 00 05 Minsk, Belarus

Bibliografia

• [1] M. Detroye, F. Reniers, C. Buess-Herman, J. Vereecken, Synthesis and characterization of chromium carbides; Applied Surface Science 120 ( 1997) 85-93.
• [2] C.J. Li, G.C. Jj., Y. Wang, Effect of powder type on the relationship beetwen spray parameters and properties of HVOF sprayed Cr3C2-NiCr coatings, “Thermal Spray meeting the challenges of the 21st century. Proc. Of 15 th International Thermal Spray conference May 1998, Nice, France, pp.287-292.
• [3] J. Berget, E. Bardal, T. Rognet, Effect of powder composition on the erosion corrosion and properties of HVOF sprayed WC-base coatings “Thermal Spray meeting the challenges of the 21st century. Proc. Of 15th International Thermal Spray conference May 1998, Nice, France, pp. 305-312.
• [4] S. Wirojanupatump, P.H. Shipway, D.G. McCartney, The influence of HVOF powder feedstock characteristics on the abrasive wear behavior of CrxCy-NiCr coatings, Wear 249 (2001) pp. 829-837.
• [5] J.M. Guilemany, J. Nutting, N. Isemi, Micro structural examination of HVOF chromium carbide coatings for high temperature applications, Jurnal of Thermal Spray Technology 5 (1996) pp. 483-489.
• [6] S. Loubiere, Ch. Laurent, J.P. Bonino, A. Rousset, A metastable chromium carbide powder obtained by carburization of a metastable chromium oxide; Journal of Alloys and Compounds 243 (1996) 59-66.
• [7] H. Huang. P.G. McCornmick, Effect of milling conditions on the synthesis of chromium carbides by mechanical alloying; Journal of Alloys and Compounds 256 (1997); 258-262.
• [8] J. He, M. Ice, E.J. Lavernia, Synthesis and characterization of nanostructured Cr3C2-NiCr, NanoStructured Materials, Vol.10, 1998, No. 8, pp. 1271-1283.
• [9] B. Formanek, M. Hetmańczyk, K. Szymański, Process of high temperature synthesis and mechanical alloying in producing CrxCy-NiCr powders for thermal spraying, Symposium „Powder characterisation for advanced materials manufacture”, 16-20.07.1997, Gijon, Hiszpania.
• [10] B. Formanek, K. Szymański, Thermally sprayed coatings with high resistance of erosion and corrosion wear, Materials Engineering nr 4 (141, 2004), (in polish).
• [11] B. Formanek, K. Szymański, A. Hernas, B. Kowalski, L. Mirecki, A. Włodarczyk, Erosion damage and protective coatings for water walls of CFB boilers, AMME 2002, Ed. By L.A. Dobrzański, Dec. 2002.
• [12] G. Dercz, B. Formanek, K. Prusik, L. Pająk, Microstructure of Ni(Cr)-TiC-Cr3C2-Cr7C3 composite powders; Material Processing Technology 162-163 (2005), pp. 15-19.