PT  - JOURNAL ARTICLE
AU  - Černý, Michal
AU  - Mazal, Pavel
AU  - Filípek, Josef
AU  - Zyková, Lucie
TI  - Acoustic emission and stage of high-cycle fatigue
DP  - 2014 Dec 28
TA  - Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
PG  - 45--62
VI  - 53
IP  - 2
AID - 10.11118/actaun200553020045
IS  - 12118516
AB  - From the material echo point of view, talking about high-cycle fatigue, when nondestructive tests of acoustic emissions has been made. Five stages of steel fatigue have been approved and divided agreeably with the shape of individual records. These records have been measured in tests and verified using the visual metalography of material surface. The aim of presented work is to choose from samples with highest levels of emissions of tension waves and its impulses during push-pull loading and than to compare them with random chosen sample from cast iron.Acquired figures of compared materials were not identical, not because of the difference of phase layout and other mechanical features, but there were acquired similar curves for exact levels of fatigue characteristic for tested materials.As the result we can take the confirmation of echo application in material, in accordance with known material wear from the force/frequency dependance.