Finishing intermetallic coatings in order to reduce the surface roughness

• Autorzy: Dyl T. C.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a shape and grade of inserts depending on the surface roughness of the intermetallic coatings NiAl and Ni3Al. Intermetallic coatings on nickel based were sprayed with a torch Casto-Dyn 8000 on the steel samples. Thermal spraying intermetallic coatings have been high surface roughness, and therefore they must to be finishing. Experimental research was conducted for unalloyed steel samples with thermal spraying NiAl and Ni3Al intermetallic coatings. Before applying coatings, the samples surface was properly prepared by stream abrasive working, degreasing and finally by cleaning of oxidation products. To testing cutting inserts shape selects square and trigon made tungsten carbide and cubic boron nitride (borazon). Machining intermetallic nickel based coatings were carried out for the cutting speed vc = 214 m/min in the case of after-machining with inserts of borazon, vc = 107 m/min cutting inserts for tungsten carbide, used feed fn = 0.06 mm/rev and depth of cut ap = 0.3 mm. Intermetallic coatings are characterized by high resistance to tribology wear. These materials are used in such fields of technology, such as: electronics, energy, defense, automotive, aviation, shipbuilding, and more industry. The NiAl and Ni3Al intermetallic have found widespread applications as high – temperature structural material due to their high melting point, low density, good thermal conductivity and excellent oxidation resistance. The paper proposes the finishing flame sprayed intermetallic coatings.

Słowa kluczowe

EN

thermal spraying; intermetallic coatings; surface finishing; cutting inserts

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2013
• Tom: Vol. 20, No. 1
• Strony: 77--82
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Dyl T. C.

• Gdynia Maritime University, Faculty of Marine Engineering Department of Marine Materials and Technology Morska Street 81-87, 81-225 Gdynia, Poland

Bibliografia

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• [3] Duraiselvam, M., Galun, R., Wesling, V., Mordike, B. L., Reiter, R., Oligmüller, J., Cavitation erosion resistance of AISI 420 martensitic stainless steel laser-clad with nickel aluminide intermetallic composites and matrix composites with TiC reinforcement, Surface and Coatings Technology, Vol. 201, pp. 1289-1295, 2006.
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• [5] Dyl, T., Starosta, R., Determining the effect of the geometry and type of inserts on the geometric structure of turned composite coatings, Inżynieria Materiałowa, No. 6, pp. 701-704, 2012.
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• [11] Starosta R., Texture of surface of coatings obtained using the “Casto-Dyn 8000” torch, after burnishing treatment, Journal of KONES, Vol. 18, No.3, pp. 413-420, 2011.
• [12] Starosta R., The influence of torch type on properties of Ni-Al and Ni-Al-Al2O3 coatings obtained by flame spraying, Inżynieria Materiałowa, Vol. 182, No. 4, pp. 743-746, 2011.