Evaluation of viscoelastic constants of metallic materials by laser-ultrasonics at elevating temperature.
The main objective of this study is the determination of elastic moduli and viscosity coefficients of metals at elevating temperature up to melting point. More specifically, it involves the analysis of the propagation of acoustic waves generated and detected simultaneously by laser-ultrasonic for the measurement of longitudinal and shear velocities. This preliminary work primarily concerns Tin (Sn) metal known for its low melting point and attenuation coefficient.
Fraizier
E
E
Centre de Recherches Forestières de Nancy, UMR 1094, Champenoux, France. emmanuel.fraizier@cea.fr
Nadal
M H
MH
Oltra
R
R