Acoustic emission from deformed Mg–Y–Nd alloy and this alloy reinforced with SiC particles

Mg–5Y–4Nd alloy and Mg–5Y–4Nd/SiC metal matrix composite were deformed at ambient temperature. Acoustic emission (AE) was measured during deformation. The time dependence of the count rate was measured with the two levels of discrimination. Pronounced maximum was observed at the onset of plastic def...

Full description

Saved in:
Bibliographic Details
Published in:Journal of alloys and compounds 2010-08, Vol.504 (2), p.L28-L30
Main Authors: TROJANOVA, Z, SZARAZ, Z, CHMELIK, F, LUKAC, P
Format: Article
Language:English
Subjects:
Acoustic emission
Condensed matter: structure, mechanical and thermal properties
Deformation and plasticity (including yield, ductility, and superplasticity)
Exact sciences and technology
Magnesium alloy
Mechanical and acoustical properties of condensed matter
Mechanical properties of solids
Particulate reinforced composite
Physics
Plastic deformation
Twinning
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Mg–5Y–4Nd alloy and Mg–5Y–4Nd/SiC metal matrix composite were deformed at ambient temperature. Acoustic emission (AE) was measured during deformation. The time dependence of the count rate was measured with the two levels of discrimination. Pronounced maximum was observed at the onset of plastic deformation. It was ascribed to massive twinning and glide of dislocations in the alloy. In the composite, the AE activity was lower in comparison with the alloy and two acoustic emission peaks were detected.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2010.05.138