Research on the Sources and Characteristics of Acoustic Emission

SEDL / STP / STP505-EB / STP35378S

Research on the Sources and Characteristics of Acoustic Emission

Schofield, BH
Section manager, Teledyne Materials Research, Waltham, Mass.

Pages: 9 Published: Jan 1972

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Abstract

A review of some of the less familiar acoustic emission characteristics and anomalies is presented with the objective of suggesting new or alternate approaches to better understand the phenomenon. Topical discussions include slip and twinning induced emission, acoustic responses during metal etching, residual stresses, and influence of grain size and fatigue. Specific shortcomings in acoustic emission research at present are noted as well as the need for additional research to keep up with the ever increasing and unusual practical applications.

Keywords:
acoustics, emission, grain boundaries, grain growth, twinning, yield strength, aluminum alloys, nondestructive tests, deformation, residual stress, corrosion mechanisms, dislocations (materials)

Paper ID: STP35378S
Committee/Subcommittee: E07.04
DOI: 10.1520/STP35378S

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