The Effect of Solidification on Acoustical of Tin Bronze 20Sn Alloy

Abstract:

This study was designed to determine the effect of the solidification rate on the acoustic properties of the bronze alloy of 20% wt. Sn. Copper and commercially pure tin is melted in a furnace to a temperature 1000, 1100 and 12000C. The melted metal is poured into molds variation temperature of 200, 300 and 4000C. Materials castings were cut and machined for specimen damping capacity test. The results showed that the reduction in mold temperature leads to an increase solidification rate, which causes the shortness of the solidification time. The variation of the solidification rate affects on the morphology of the microstructure and acoustical properties of the material. By increasing the solidification rate influence on the secondary dendrite arm spacing (SDAS) decreases. It causes the material hardness increases and the damping capacity of material decreases. There is a significant correlation between the material hardness and the damping capacity of materials.

• Periodical: Applied Mechanics and Materials (Volume 776)
• Pages: 208-214
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.776.208
• Online since: July 2015
• Authors: I. Ketut Gede Sugita*, I. Gusti Ngurah Priambadi
• Keywords: Acoustical, Dendrite, SDAS, Solidfication Rate, TiN Bronze

References

[1] Lisovskii, V. A., Lisovskaya.O. B, Kochetkova L.P., Favstov, Y.K., Sparingly Alloyed Bell Bronze with Elevated Parameters of Mechanical Properties, Journal Metal Science and Heat Treatment 49 (2007) 232-235.

DOI: 10.1007/s11041-007-0041-6

[2] Hosford, F.W., Mechanical Behaviour of Materials, Cambridge University Press, (2005).

[3] Kaplan, M. and Yieldiz, A.K., The Effects of Production Methods on Microstructures and Mechanical Properties of an Aluminum Bronze, Materials Letters, (2003), 4402-4411.

DOI: 10.1016/s0167-577x(03)00332-x

[4] Campbell, J., The New Metallurgy of Cast Metals, Second Edition, Butterworth Heinemann. (2003).

[5] Stefanescu, D.M., Science and Engineering of Casting Solidification, Kluwer Academic/Plenum Publisher, New York, Boston, Dordrecht, London, Moscow, (2002).

[6] Stefanescu, D.M. and Ruxanda, R., Fundamentals of Solidification, Metallography and Microstructures, ASM Handbook 9, (2004), 71–92.

DOI: 10.31399/asm.hb.v09.a0003724

[7] Lee, S.L. and Tzong, R., Y., Latent Heat Method for Solidification Process of a Binary Alloy System, Journal of Heat and Mass Transfer, 38 (1995) 1237-1247.

DOI: 10.1016/0017-9310(94)00240-v

[8] Martorano, M.,A. and Capocchi, J., D.,T., Heat Transfer Coefficient at the Metal-Mould Interface in the Unidirectional Solidification of Cu-8%Sn Alloys, Journal of Heat and Mass Transfer 43 (2000) 2541-2552.

DOI: 10.1016/s0017-9310(99)00298-7

[9] Kohler, F., Germond L, Wagniere J-D., Rappaz M., Peritectic Solidification of Cu–Sn Alloys: Microstructural Competition at Low Speed, Acta Materialia 57 (2008) 56–68.

DOI: 10.1016/j.actamat.2008.08.058

[10] Zhao, Y., Bian, X., Qin, J, Qin, X., Hou, X., Structural Evolution in the Solidification Process of Cu–Sn Alloys Journal of Non-Crystalline Solids, 353 (2007), 4845–4848.

DOI: 10.1016/j.jnoncrysol.2007.08.075

[11] ASTM, E 1876-01, Standard Test Method for Dynamic Young, Shear Modulus, and Poisson's Ratio by Impulse Excitation of vibration, ASTM International, (2002).

[12] Halvaee, A. and Talebi, A., Effect of Process Variables on Microstructure and Segregation in Centrifugal Casting of C92200 Alloy, Journal of Materials Processing Technology 118 (2001) 123–127.

DOI: 10.1016/s0924-0136(01)00904-9

[13] Hemanth, J., Effect of Cooling Rate on Dendrite Arm Spacing (DAS), Eutectic Cell Count (ECC) and Ultimate Tensile Strength (UTS) of Austempered Chilled Ductile iron, Materials and Design 21 (2000) 1-8.

DOI: 10.1016/s0261-3069(99)00052-7

[14] Shen, J., Liu, Y. C. and Hoxie, A., Rapid Directional Solidification in Sn-Cu Lead-Free solder Journal of University of Science and Technology Beijing Volume Z3. (2006).

DOI: 10.1016/s1005-8850(06)60069-8

[15] Zhang, L, Y, Jiang, Y, H, Ma, Z, Shan, S. F, Jia,Y. Z, Fan, C. Z, Wang, W. K, Effect of Cooling Cate on Solidified Microstructure and Mechanical Properties of Aluminium-A356 Alloy, Journal of Materials Processing Technology 207 (2008) 107–111.

DOI: 10.1016/j.jmatprotec.2007.12.059

[16] Askeland, D.R., The Science and Engineering of Materials, University of Misouri-Rolla, California, USA, (1984).

[17] De Silva Clarence W, Vibration Fundamental and Practice, Boca Raton London, CRC Press, (2000).