Published 1998 | Version v1
Journal article Metadata-only

The dominant mechanisms of absorption of ultrasound in aluminium AC1-alloy

Creators

  • 1. Institute of Physics, Faculty of Natural Sciences and Mathematics, St. 'Cyril and Methodius' University, Skopje (Macedonia, The Former Yugoslav Republic of)

Description

The values of the total absorption of the longitudinal ultrasonic waves in the interval of frequency from 3 to 15 MHz, in AC-1 alloy, were measured. The dominant mechanisms of absorption in examined samples are elastic hysteresis and stochastically scattering of the acoustical energy on the boundary of structural grains. The obtained values in this examinations were compared by the theoretically calculated coefficient of absorption (for λ>2pDa), and (for ΔKixDa << π/2. (Author)

Additional details

Publishing Information

Journal Title
Physica Macedonica
Journal Volume
48
Series
The journal has changed its name. So the 'Physica Macedonica' is a continuation from the journal 'Godishen zbornik. Fizika - Prirodno matematichki fakultet na Univerzitetot 'Kiril i Metodij' Skopje. Institut za fizika' - ISSN 0352-9649
Journal Page Range
p. 29-34
ISSN
1409-7168

INIS

Country of Publication
North Macedonia, Republic of
Country of Input or Organization
North Macedonia, Republic of
INIS RN
30049700
Subject category
S36: MATERIALS SCIENCE; S42: ENGINEERING;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ALUMINIUM ALLOYS; ATTENUATION; CRYSTAL STRUCTURE; ELASTICITY; EXPERIMENTAL DATA; HYSTERESIS; RAYLEIGH SCATTERING; ULTRASONIC TESTING; ULTRASONIC WAVES
Descriptors DEC
ACOUSTIC TESTING; ALLOYS; COHERENT SCATTERING; DATA; INFORMATION; MATERIALS TESTING; MECHANICAL PROPERTIES; NONDESTRUCTIVE TESTING; NUMERICAL DATA; SCATTERING; SOUND WAVES; TESTING

Optional Information

Notes
12 refs., 4 figs., 3 tabs.; Acknowledgment: The authors wishes to express their appreciation to ALUMINA C.O. Skopje R.Macedonia for supplying AC 1 samples. Also the authors wish to express their appreciation to the Ministry of Science for the financial support of the project: SYNTETISATION ON THE NEW AND CONVENTONAL METALIC MATERIALS AND THEIR CARACTERIZATION WITH ULTARASONIC AND METALOGRAPHICS METODS.
Funding organization
Ministry of Science of the Republic of Macedonia, Skopje (Macedonia, The Former Yugoslav Republic of)