Change of aluminum alloys structure by sono-solidification

• Autorzy: Gnapowski S. , Tsunekawa Y. , Okumiya M. , Lenik K.
• Języki publikacji: EN

Abstrakty

EN

This experiment utilized five Aluminum alloys with silicon content percentages of 7, 10, 12.6, 14.5 and 17(wt)%. Ultrasonic vibration was applied to improved the quality of aluminum alloys. Sono-solidification, in which ultrasound vibrations are applied to molten metal during its solidification, is expected to cause improved mechanical properties due to grain refinement. Observed by microstructure photographs was that grains became smaller and their shapes more regular. Using ultra sound solidification α Al appeared during ultrasound treatment the eutectic solidification time was longest around 10% compared with same condition experiment without ultrasound treatment.

Słowa kluczowe

EN

ultrasonic vibration; sono solidification; Al-Si alloy; grain size; solidification temperature

PL

drgania ultradźwiękowe; krzepnięcie; stop Al-Si; wielkość ziarna; temperatura krzepnięcia

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2013
• Tom: Vol. 13, iss. 4
• Strony: 39--42
• Opis fizyczny: Bibliogr. 9 poz., rys., tab., wykr.

Twórcy

autor

Gnapowski S.

• Kumamoto University, Graduate School of Science and Technology, Frontier Technology for Electrical Energy, Kumamoto University, 2-39-1 Kurokami, Kumamoto, 860-8555, Japan.

autor

Tsunekawa Y.

• Toyota Technological Institute, 2-12-1 Hisakata, Tempaku-ku, Nagoya 468-8511, Japan

autor

Okumiya M.

• Toyota Technological Institute, 2-12-1 Hisakata, Tempaku-ku, Nagoya 468-8511, Japan

autor

Lenik K.

• Fundamentals of Technology Faculty, Lublin University of Technology, ul. Nadbystrzycka 38, 20-618 Lublin, Poland

Bibliografia

• [1] Tsunekawa, Y., Taga, K., Fukui, Y. & Okumiya, M. (2010). Appearance of Non-Equilibrium α-Aluminum Grains in Hypereutectic Al-Si Alloy through Sono-Solidification. Materials Science Forum. 638-642, 362-367.
• [2] Margaret, L., Cardoni, A., Mcculloch, E., Hunter, G. & Macbeath, A. (2008). Applications of Power Ultrasonics in Engineering. Applied Mechanics and Materials. 13-14, 11-20.
• [3] Abramov, O.V., Lobov, L.A. (1994). Ultrasound in Liquid and Solid Metals, CRC Press, Boca Raton, FL, 289-320.
• [4] Eskin, G.I. (1998). Ultrasonic Treatment of Light Alloy Melts. Gordon and Breach Science Publishers. 1-59.
• [5] Hickling, R. (1994). Transient high-pressure solidification associated with cavitation in water. Physical Review Letters. 73(21), 2853–2856.
• [6] Khalifa, W., Tsunekawa, Y., & Okumiya, M. (2008). Effect of ultrasonic melt treatment on the microstructure of A356 aluminum cast alloys. International Journal of Cast Metals Research. 21, 129-134.
• [7] Khalifa, W., Tsunekawa, Y. & Okumiya, M. (2010). Effect of ultrasonic melt-treatment on the eutectic silicon and iron inter-metallic phases in Al–Si cast alloys. Materials Science Forum. 431-436.
• [8] Khalifa, W., Tsunekawa, Y. & Okumiya, M. (2008). Ultrasonic grain refining effects in A356 Al–Si cast alloy. Transactions of the American Foundry Society. 118(10-020).
• [9] Omura, N., Murakami, Y., Li, M., Tamura, T., Miwa, K., Furukawa, H. & Harada, M. (2009). Effect of mechanical vibration on cooling rate and DAS of AC4C aluminum alloy gravity die castings. Materials Transactions. 50, 2604-2608.