Abstract
Vibration effects on grain refinement in aluminum alloy were investigated by mechanically vibrating metal mold during solidification. Results show that both the frequency and the half amplitude affected the grain refinement, decreasing the average grain size. We hypothesized that the average grain size can be estimated from the excitation force consolidating them. To clarify grain refinement mechanisms, experiments were conducted with different vibration starting times and different vibration periods. Moreover, a water model experiment was conducted using ammonium chloride solution. Both the equiaxed grain size and the columnar grain length were reduced by mold vibration before pouring, irrespective of the vibration period. However, when the mold was vibrated at 15 s after pouring, the columnar grain length increased. Moreover, the equiaxed grain size increased greatly. Water model experiments showed that a vibrated mold made of polycarbonate and aluminum alloy produced many crystals near the mold wall and filled the mold by vibration and induced convection. These results clarified that starting vibration before solidification is important for grain refinement.
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References
N.J. Petch, Philos. Mag. 3, 1089 (1958)
A. Waguri, Youketsu Kikaikousakuhou (Youkendo) 36, 58 (1975)
R.J. Kissling, J.F. Wallace, Foundry 91,5,142 (1963)
S. Terai, J. JILM 24, 42 (1974)
K. Oda, S. Komarov, Y. Ishiwata, J. JILM 61, 4,149 (2011)
Y. Osawa, G. Arakane, S. Takamori, S. Sato, O. Ohashi, J. JFS 71, 98 (1999)
Y. Osawa, S. Takamori, G. Arakane, O. Umezawa, S. Sato, O. Ohashi, J. JFS 72, 187 (2000)
K. Taga, Y. Fukui, Y. Tsunekawa, M. Okumiya, J. JFS 81, 469 (2009)
J. Barbosa, H. Puga, IJMC (2018). https://doi.org/10.1007/s40962-018-0248-x
G.I. Eskin, Ultrasonic Treatment of Light Alloy Melts (CRC Press, Boca Raton, 1998)
L. Zhang, D.G. Eskin, L. Kategerman, J. Mater. Sci. 46, 5252 (2011)
G. Wang, M.S. Dargusch, M. Qian, D.G. Eskin, D.H. Stjohn, J. Cryst. Growth 408, 119 (2014)
K. Miwa, J. JILM 52, 611 (2002)
T. Momono, K. Ikawa, J. JILM 29, 240 (1979)
S. Nishida, H. Era, F. Otsubo, J. JFS 84, 526 (2012)
K. Hoshino, K. Kamiyama, T. Sakai, T. Kurosawa, T. Otani, IMONO 66, 217 (1994)
N. Omura, Y. Murakami, M. Li, T. Tamura, K. Miwa, H. Hurukawa, J. JFS 81, 536 (2009)
N. Omura, Y. Murakami, M. Li, T. Tamura, K. Miwa, H. Hurukawa, M. Harada, M. Yokoi, J. JFS 81, 295 (2009)
K. Hoshino, T. Sakai, T. Kurosawa, S. Ito, T. Otani, IMONO 61, 581 (1989)
K. Hoshino, Y. Nagadome, T. Sakai, T. Kurosawa, T. Otani, J. JFS 68, 124 (1996)
T. Ohmi, M. Kudo, M. Iguchi, J. JFS 77, 542 (2005)
M.C. Mehta, S.K. Chaudhury, D. Mandal, IJMC (2018). https://doi.org/10.1007/s40962-018-0271-y
E.A. Hiedemann, J. Acoust. Soc. Am. 5, 831 (1954)
R.S. Richards, W. Rostoker, Trans. ASM 48, 886 (1956)
A.H. Freedman, J.F. Wallace, Trans. AFS 65, 578 (1956)
F.C. Langenberg, G. Pestel, C.R. Honeycutt, Trans. TMS-AIME 221, 993 (1961)
W.C. Johnston, G.R. Kotler, S. O’Hara, H.V. Ashcom, W.A. Tiller, Trans. TMS-AIME 233, 1856 (1965)
D. Eskin, N. Alba-Baena, T. Pabel, M. da Silva, Mater. Sci. Technol. 31, 79 (2014)
T. Otani, T. Sakai, K. Hoshino, T. Kurosawa, IMONO 59, 590 (1987)
Y. Osawa, A. Sato, T. Namai, G. Arakane, IMONO 65, 288 (1993)
A. Nishimura, Y. Kawano, J. JILM 25, 193 (1975)
Y. Osawa, S. Takamori, T. Kimura, K. Minagawa, J. JFS 79, 738 (2007)
Y. Osawa, A. Sato, J. JFS 72, 733 (2000)
H. Yasuda, K. Nogita, Y. Yamamoto, T. Nagira, M. Yoshiya, K. Uesugi, K. Umetani, A. Takeuchi, Y. Suzuki, J. JILM 61, 736 (2011)
D. Ruvalcaba, R.H. Mathiesen, D.G. Eskin, L. Arnberg, L. Katgerman, Acta Mater. 55, 4287 (2007)
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Yoshitake, Y., Yamamoto, K., Sasaguri, N. et al. Grain Refinement of Al–2%Cu Alloy Using Vibrating Mold. Inter Metalcast 13, 553–560 (2019). https://doi.org/10.1007/s40962-018-0289-1
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DOI: https://doi.org/10.1007/s40962-018-0289-1