Generation of volumetric waves in ferromagnetic metals with an electromagnetic-acoustic transducer

Journal Article · Mon Aug 01 00:00:00 EDT 1988 · Sov. J. Nondestr. Test. (Engl. Transl.); (United States)

OSTI ID:6043408

Il'in, I V

The generation of volumetric waves by a filament of current in a ferromagnetic metal, magnetized by a uniform constant magnetic field, was examined by utilizing the equations of electrodynamics and of the theory of elasticity. The magnetizing field was oriented at an arbitrary angle versus the metal's surface. The basic mechanisms for generating longitudinal waves are given as a function of the angle of their propagation and of the orientation of the magnetizing field; the angular functions were calculated for the amplitudes of the volumetric waves. From the solutions for a current filament the acoustic field was calculated for an electromagnetic-acoustic transducer in the form of a phased array, and the principal relationships presented for selecting its parameters.

• Research Organization: Leningrad Lenin Order Institute of Railroad Transportation Engineers (USSR)
• OSTI ID: 6043408
• Journal Information: Sov. J. Nondestr. Test. (Engl. Transl.); (United States), Vol. 23:12; Other Information: Translated from Defektoskopiya; 23: No. 12, 13-21 (Dec 1987)
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE
FERROMAGNETIC MATERIALS
ULTRASONIC TESTING
METALS
TRANSDUCERS
PERFORMANCE
ULTRASONIC WAVES
WAVE PROPAGATION
AMPLITUDES
ELASTICITY
ELECTRODYNAMICS
ELECTROMAGNETIC FIELDS
IRON
MAGNETIZATION
MAGNETOSTRICTION
MATHEMATICAL MODELS
ORIENTATION
PARAMETRIC ANALYSIS
ACOUSTIC TESTING
ELEMENTS
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
NONDESTRUCTIVE TESTING
PHYSICAL PROPERTIES
SOUND WAVES
TENSILE PROPERTIES
TESTING
TRANSITION ELEMENTS
420500* - Engineering- Materials Testing
360102 - Metals & Alloys- Structure & Phase Studies