Brillouin scattering spectroscopy on Mg-Nd alloy in different aging time

Abstract

Brillouin scattering is a nondestructive optical measurement that can be used to test the elastic properties of materials precisely, i.e. elastic constant, viscosity, and etc. In this paper, we report a backscattering configuration to measure the elastic constants of a series of opaque Mg-Nd alloys in different aging time. The elastic constants, C11 and C12, increase sharply with the increase of aging time, while after 16 hours, C11 and C12 tend to be stable. It indicates that aging time can improve elastic properties of Mg-Nd alloy, which explains the change of texture, in a certain time range.