Acoustic Emission Avalanches in Martensitic Transitions: New Perspectives for the Problem of Source Location

Abstract:

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Different experimental procedures for the location of sources of Acoustic Emission (AE) avalanches during Martensitic Transformations are discussed. A first example corresponds to the 1D location of AE events during stress-induced martensitic transitions in a Cu-Zn-Al shape memory alloy (3.5 cm length). The obtained data allows monitoring of the interface advancement with a spatial resolution of less than 1 mm. Secondly, we discuss two different ideas that have significant potential for improving this resolution in the case of thermally induced transitions in small single crystalline samples (~1 cm): the use of elastodynamic simulations based on finite element methods and the simultaneous detection of AE and Barkhausen noise in ferromagnetic samples.

Info:

Periodical:

Solid State Phenomena (Volumes 172-174)

Edited by:

Yves Bréchet, Emmanuel Clouet, Alexis Deschamps, Alphonse Finel and Frédéric Soisson

Pages:

144-149

DOI:

10.4028/www.scientific.net/SSP.172-174.144

Citation:

E. Vives et al., "Acoustic Emission Avalanches in Martensitic Transitions: New Perspectives for the Problem of Source Location", Solid State Phenomena, Vols. 172-174, pp. 144-149, 2011

Online since:

June 2011

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Price:

$35.00

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