Studies Regarding the Hardness and Microhardness of Al-Si Alloys Solidified in Ultrasound Field

Article Preview

Abstract:

The paper presents an experimental study regarding two Al-Si alloys concerning the influence of ultrasonic treatment on the hardness and microhardness. AlSi12 ultrasound treated function as time hardness important decreases are observed. AlSi7 ultrasound treated function as time hardness easily increases is observed. The contradiction between two measurements was studied by microhardness of AlSi7 grain and eutectic mass materials. Important microhardness decreasing on eutectic mass materials is observed.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

299-302

Citation:

Online since:

October 2007

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] J. Campbell , International Metals Review, No. 2, (1981), p.71.

Google Scholar

[2] Y. Han, K. Li, J. Wang, D. Shu, B. Sun: Mater. Sci. & Eng. A, vol. 405, (2005), p.306.

Google Scholar

[3] D. Porcar, Research concerning the mechanical characteristics improvement of cast pieces solidified in ultrasonic field, PhD. Thesis, Technical University of Cluj-Napoca, 2004 (in romanian).

Google Scholar

[4] G.I. Eskin, Yu.P. Pimenov, G.S. Makarov, Mater. Sci. Forum, Vol. 242, (1997), p.65.

Google Scholar

[5] L. Xin-tao, L. Ting-ju, L. Xi-meng, J. Jun-ze: Ultrasonic Sonochemistry, Vol. 13, Issue 2, (2006) p.121.

Google Scholar

[6] G.M. Swallowe, J.E. Field, C.S. Rees, A. Duckworth, Acta Metal Vol. 37, (1989), p.961.

Google Scholar

[7] T.J. Mason, J.P. Lorimer, B. Pollet: Mater. World, Vol. 7, No. 2, pp.69-71, 1999 Fig. 6, Grain HV0. 01 microhardness for AlSi7 alloy A, B and C samples Fig. 7, Eutectic HV0. 01 microhardness for AlSi7 alloy A, B and C samples.

Google Scholar