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Measurements of dynamic Young modulus of AlSi10Mg alloy cast in vibrating field

M. TIEREAN1, L. BALTES1,* , M. LUCA1, A. BANEA1

Affiliation

  1. “Transilvania” University of Brasov, 500036 Brasov, Romania

Abstract

The goal of this paper is to test the vibrations influence on dynamic longitudinal elastic modulus. AlSi10Mg alloy (EN 1706-2010) was used for the samples. The solidification was done static and in vibration conditions. Six lots of specimens were casted in cold and preheated moulds, without and with vibrations from 50 Hz to 1050 Hz. In order to determine the dynamic modulus of elasticity it was necessary to have the density and the resonance frequency of the samples. The density used was computed as average of two values, first from the volume calculation and second one from the volume measuring by immersion in liquid. The resonant frequency determination was performed on cantilever samples using a dedicated setup. An increasing of the dynamic elastic modulus was observed with increasing of vibration frequency and with the increasing of the material density. The results were mathematically modelled having a good correlation..

Keywords

Young modulus, Al alloy, casting, vibrations.

Submitted at: April 4, 2015
Accepted at: Oct. 28, 2015

Citation

M. TIEREAN, L. BALTES, M. LUCA, A. BANEA, Measurements of dynamic Young modulus of AlSi10Mg alloy cast in vibrating field, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 11-12, pp. 1868-1873 (2015)