Distribution of Acoustic Emission Avalanches in Martensitic Transformations

E. Vives; J. Ortín; Ll. Mañosa,; I. Ràfols; A. Planes

doi:doi:10.1051/jp4:1995208

Accès gratuit

Numéro		J. Phys. IV France Volume 05, Numéro C2, Février 1995 IIIrd European Symposium on Martensitic Transformations ESOMAT'94


Page(s)		C2-59 - C2-64
DOI		https://doi.org/10.1051/jp4:1995208

IIIrd European Symposium on Martensitic Transformations
ESOMAT'94

J. Phys. IV France 05 (1995) C2-59-C2-64
DOI: 10.1051/jp4:1995208

Distribution of Acoustic Emission Avalanches in Martensitic Transformations

E. Vives, J. Ortín, Ll. Mañosa,, I. Ràfols and A. Planes

Departament d'Estructura i Constituents de la Matèria, Facultat de Física, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Catalonia, Spain

Abstract
Measurements of the Acoustic Emission generated during a Martensitic Transformation are presented. Statistical analysis of the amplitude and lifetime of signals has revealed power-law distributions for both magnitudes. The critical exponents of these distributions have been evaluated. The results are discussed in terms of modern theories of avalanche dynamics for first order phase transitions.