Archives of Acoustics, 25, 1, pp. , 2000

Application of the frequency analysis of acoustic emission in the study of the metal alloy solidification

M. Golec
Poznań University of Technology, Institute of Applied Mechanics, Division of Dynamics and Vibroacoustics of Systems

Z. Golec
Poznań University of Technology, Institute of Applied Mechanics, Division of Dynamics and Vibroacoustics of Systems

A frequency analysis of the acoustic emission signals was
applied for the investigation of the solidification of a Pb-Sb alloy. Spectra of
continuous emission and short-time acoustic emission impulses were investigated.
It has been stated that, together with structural changes of the Pb-Sb alloy,
significant changes occur in the spectra of the acoustic emission impulses
generated in different phases of solidification. Less significant changes were
observed in continuous acoustic emission spectra.
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