Dynamics of the acoustic emission source during a martensitic transformation
- 1 August 1988
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 18 (8) , 1725-1731
- https://doi.org/10.1088/0305-4608/18/8/011
Abstract
The authors have analysed the acoustic emission signals generated during the thermoelastic martensitic transformation of a Cu-Zn-Al alloy using a broad-band detection system. The analysis has been restricted to rise times which contain information related with the dynamics of the transformation mechanism. The results show the existence of two well separated rise-time signal populations. The average values of each class are 0.2+or-0.1 mu m and 2.2+or-0.5 mu m. The presence of signals with a characteristic 'fine structure' superimposed on the mean long rise-time wave has been attributed to a jerky character of the martensitic growth process.Keywords
This publication has 10 references indexed in Scilit:
- Quantitative analysis of acoustic emission signalsJournal of Applied Physics, 1987
- Acoustic emission during the martensitic transformation of small microplates in a CuZnAl alloyPhysics Letters A, 1987
- Quantitative analysis of acoustic emission during martensitic transformation of the β-CuZnAl alloyJournal of Physics D: Applied Physics, 1986
- EWGAE codes for acoustic emission examination: Code IV — Definition of terms in acoustic emission Code V — Recommended practice for specification, coupling and verification of the piezoelectric transducers used in acoustic emissionNDT International, 1985
- Acoustic emission and domain wall dynamics in ferroelectric-ferroelastic gadolinium and terbium molybdateJournal of Physics C: Solid State Physics, 1984
- On the nature of the thermoelastic martensitic phase transformation in Au-47.5 at.% Cd determined by acoustic emissionActa Metallurgica, 1982
- Energetic measurements of the acoustic emission generated during the martensitic transformation of a Cu-Zn-Al alloyJournal of Physics D: Applied Physics, 1982
- The thermoelastic phase transition in Au—Cd alloys studied by acoustic emissionPhilosophical Magazine A, 1981
- A new technique for the measurement of acoustic emission transients and their relationship to crack propagationJournal of Physics D: Applied Physics, 1978
- On acoustic emission from ferroelectric crystalsSolid-State Electronics, 1972