Influence of Cast Iron Modification on Free Vibration Frequency of Casting

• Autorzy: Konopka Z. , Łągiewka M. , Zyska A.

Identyfikatory

DOI

10.24425/afe.2020.131277

• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of investigations concerning the influence of gray cast iron modification on free vibration frequency of the disc casting. Three different chemical composition melts of gray cast iron were prepared in induction furnace. During gravity casting 0.05% and 0.3% mass of the Inolate modifier was added on stream of metal for changing graphite flakes in castings. Sound signal vibration of cast iron sample was registered by means on microphone for free vibration frequency measurements. Decreasing of free vibration frequency of modified cast iron in comparison with non modified castings was observed. Higher contents of modifier causes more decreasing of free vibration frequency. Cast iron with smaller contents of carbon and silicon have higher free vibration frequency in comparison with eutectic composition cast iron. Hardness of examined cast iron is lower when the more modifier is added during modification process. Free frequency is smaller with smaller Brinell hardness of disc casting. It was concluded that control of free vibration frequency of disc castings by means of chemical composition and modification process can improved comfort and safety of working parts.

Słowa kluczowe

EN

gray cast iron; modification process; free vibration; casting; vibration frequency of casting

PL

żeliwo szare; proces modyfikacji; drgania swobodne; odlewy; częstotliwość drgań odlewu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2020
• Tom: Vol. 20, iss. 1
• Strony: 23--26
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr.

Twórcy

autor

Konopka Z.

• Czestochowa University of Technology, Częstochowa, Poland

autor

Łągiewka M.

• Czestochowa University of Technology, Częstochowa, Poland

autor

Zyska A.

• Czestochowa University of Technology, Częstochowa, Poland

Bibliografia

• [1] Giergiel, J. (2000). Mechanical vibration. Kraków: Uczelniane Wydawnictwa Naukowe AGH. (in Polish).
• [2] Stawarz, M. (2008). Quality control of cast brake discs. Archives of Foundry Engineering. 8(1), 119-122.
• [3] Podrzucki, Cz., Kalata, Cz. (1975). Metallurgy and iron casting. Katowice: Wyd. Śląsk. (in Polish).
• [4] Zhang, J., Perez, R.J. & Lavernia, E.J. (1993). Dislocation-induced damping in metal matrix composites. Journal of Materials Science. 28(3), 835–846.
• [5] Ritchie, I.G. & Pan, Z-L. (1991). High-Damping Metals and Alloys. Metallurgical Transactions. A 616(22A).
• [6] Wei, J.N., Cheng, H.F., Zhang, Y.F., Han, F.S., Zhou, Z.C. & Shui, J.P. (2002). Effects of macroscopic graphite particulates on the damping behavior of commercially pure aluminum. Materials Science and Engineering. A, 325(1-2), 444-453.
• [7] Wu, Y.W., Wu, K., Deng, K.K., Nie, K.B., Wang, X.J., Zheng, M.Y. & Hu, X.S. (2010). Damping capacities and microstructures of magnesium matrix composite reinforced by graphite particles. Materials and Design. 31(10), 4862- 4865.
• [8] Rzadkosz, S. (1995). Influence of chemical composition and phase transformations on the damping and mechanical properties of aluminum-zinc alloys. Kraków: Wydawnictwa AGH Rozprawy Monografie. (in Polish).
• [9] Jincheng, W. & Gencang, Y. (2001). The energy dissipation of particle-reinforced metal-matrix composite with ductile interphase. Materials Science and Engineering. A, 303(1-2), 77-81.
• [10] Pietrzak, K., Klasik, A., Makowska, K., Sobczak, J., Wojciechowski, A. & Rudnik,D. (2012). On the damping of vibrations in composite materials. Prace Instytutu Odlewnictwa. LII. 53-268. (in Polish).
• [11] Fraś, E., Podrzucki, C. (1978). Inoculated Cast Iron. Cracow: AGH.
• [12] Guzik, E., Porębski, M., Woźnica, H. & Szala, J. (2005). The microstructure of the selected inoculants for use cast irons. Archives of Foundry. 5(15), 109-114.
• [13] Przybyłowicz, K. (2011). Metallic materials testing methods. Kielce: Politechnika Świętokrzyska. (in Polish).
• [14] PN-EN ISO 6506-1:2014-12 Brinell hardness measurement. (in Polish).

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)