Acoustic and optical monitoring of Lüders band in aluminum-magnesium 5456 alloy
Authors:
- 18 January 2011
- journal article
- Published by Pleiades Publishing Ltd in Crystallography Reports
- Vol. 56 (1) , 141-148
Abstract
The early stages of development of Lüders band in recrystallized 5456 alloy have been investigated by the method of acoustic emission and synchronously by high-speed video tapping with a rate of 500 frames/s. It is established that the first acoustic pulse indicates the instant that the first band of localized deformation nucleates (which initiates the formation of the complex structure of the Lüders front) and is in this context an acoustic precursor to the loss of deformation stability of the alloy.Keywords
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