The effect of casting porosities on cavitational erosion of intermetallic alloy FeAl36

• Autorzy: Jasionowski R. , Przetakiewicz W. , Zasada D.
• Języki publikacji: EN

Abstrakty

EN

The machinery and equipment elements operating in a turbulent fluid flow, are exposed to destruction as a result of the impact of the cavitation, corrosion and abrasion processes, among which are hardest to minimize the imploding cavitation bubbles. Repeated cavitation implosions of bubbles give rise to cracks, material loss, resulting in increased flow resistance and reduction of the efficiency of the device, or even its destruction. In order to prevent or mitigate the cavitation phenomenon and its harmful effects, two basic methods are applied. The first of these is the selection of geometrical parameters and hydraulic machinery and the relevant elements of the streamlined shape and flow channels. The second solution is the selection of engineering plastics with greater resistance to cavitation. In case of materials manufactured with the casting method, a very important role is being played by the quality of manufactured casting having the smallest number of casting defects. The aim of the present study was to examine the effect of casting porosities of an intermetallic alloy FeAl36 on cavitational erosion.

Słowa kluczowe

EN

cavitation erosion; cavitation; intermetallic alloys

PL

erozja kawitacyjna; kawitacja; stopy intermetaliczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 3
• Strony: 175--178
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Jasionowski R.

• Maritime University of Szczecin, Institute of Basic Technical Sciences, Szczecin, Poland

autor

Przetakiewicz W.

• Maritime University of Szczecin, Institute of Basic Technical Sciences, Szczecin, Poland

autor

Zasada D.

• Military University of Technology, Department of Metallurgy and Material Technology, Warszawa, Poland

Bibliografia

• [1] C.E. Brennen, Cavitation and Buble Dynamics, Oxford University Press, 1995.
• [2] L.J. Briggs, The Limiting Negative Pressure of Water, Journal of Applied Physics, Vol. 21 (1970) 721-722.
• [3] D.H. Trevena, Cavitation and tension in liquids, IOP Publishing Ltd, 1987.
• [4] M. Głowacka J., Hucińska, Stan badań nad niszczeniem kawitacyjnym stopów metali i ich ochroną przed tym procesem, Inżynieria Materiałowa, 2(2001)79.
• [5] K. Steller, O mechanizmie niszczenia materiałów podczas kawitacji, Zeszyty Naukowe Instytutu Maszyn Przepływowych PAN, Gdańsk 1983, Nr 175/1107/83.
• [6] R. Jasionowski, W. Przetakiewicz, D. Zasada, J. Grabian, Wpływ nadtapiania laserowego na zużycie kawitacyjne wybranych stopów, VI Konferencja Naukowa „Obróbka Powierzchniowa 2005”, Kule, 20-23.09.2005.
• [7] A. Karimi, J.L. Martin, Cavitation erosion of materials, International Metals Reviews, Vol. 31, No. 1 (1986), 1-26.
• [8] J. Steller, International Cavitation Erosion Test and quantitative assessment of material resistance to cavitation, Wear, Vol. 233-235, p. 51-64.