A Correlation Between Pulse-Echo Ultrasonic Attenuation and Hardness,

Abstract

Nondestructive evaluation and characterization of materials, especially in terms of parameters critical to modern design and fabrication, is a problem of growing magnitude. One example of this problem is the inability of any present nondestructive test technique to definitely establish the yield strength of a fabricated section of steel, especially if spacial gradients of material properties occur. The present report describes some results of one nondestructive method which does offer some improvement in such capabilities and indicates a direction for continued development. In particular, a theoretical correlation is established between pulse-echo ultrasonic attenuation values and hardness for alloys with variable impurity content. Experimental tests which qualitatively support the correlation are also described. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1970
Accession Number
AD0717099

Entities

People

  • K. Reifsnider
  • S. Sawyer

Tags

DTIC Thesaurus Topics

  • Attenuation
  • Fabrication
  • Hardness
  • Impurities
  • Material Forming Processes
  • Materials
  • Materials Processing
  • Mechanical Properties
  • Mechanical Working
  • Test And Evaluation
  • Yield Strength

Readers

  • Computational Modeling and Simulation
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Systems Analysis and Design