An Investigation of the Effects of Metallurgical and/or Testing Variables on the Acoustic Emission from Crystalline Materials.

Abstract

The goal of this investigation was to characterize and correlate the acoustic emission measured during deformation with the responsible deformation mechanisms. Two separate and distinct classes of materials have been investigated. The materials were chosen for the important fundamental information they could provide concerning the relationship between acoustic emission and the parameters involved and because of their practical importance to Air Force programs and objectives. The materials investigated were: one, a selection of precipitation strengthened metals and alloys, and two, a selection of metals and alloys having a hexagonal close packed structure. For both classes of materials the acoustic emission has measured during deformation for different metallurgical and testing parameters. The data have been analyzed and models and/or deformation mechanisms responsible for the measured emission have been identified.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1982
Accession Number
ADA121715

Entities

People

  • Steve H. Carpenter

Organizations

  • University of Denver

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Age Hardening
  • Air Force
  • Aluminum
  • Aluminum Alloys
  • Chemical Synthesis
  • Chemistry
  • Crystal Structure
  • Elastic Waves
  • Materials
  • Mechanical Working
  • Modulus Of Elasticity
  • Plastic Flow
  • Plastic Properties
  • Solid Solutions
  • Stress Strain Relations
  • Stresses
  • Yield Strength

Readers

  • Materials Science and Engineering.
  • Structural Health Monitoring of Composite Structures.
  • Theoretical Analysis.