INVESTIGATION OF THE EFFECTS OF ULTRASONICS ON THE DEFORMATION CHARACTERISTICS OF METALS.

Abstract

Results regarding the irradiation influence on hardening by irradiation prior to the static tensile test, and on the softening effects during it are described. Results are given on the influence on recovery of prehardened crystals by superimposed irradiation. The ultrasonic influence on diffusion processes is studied by means of investigations on the change of microhardness of impure metal samples during the incubation time of recrystallization, and the observation of the change in hardness, and the behavior during the static tensile test of fully annealed zinc samples. The question whether the vibration of strain or of stress is responsible for the hardening of metal crystals was examined by using samples exited to stationary ultrasonic waves. It was found that the stress antinode is also responsible for an increase of the creep rate using irradiated samples.

Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1964
Accession Number
AD0603378

Entities

Organizations

  • University of Vienna

Tags

DTIC Thesaurus Topics

  • Crystals
  • Diffusion
  • Hardening
  • Hardness
  • Incubation
  • Metal Crystals
  • Microhardness
  • Observation
  • Recovery
  • Recrystallization
  • Softening
  • Stationary
  • Ultrasonics
  • Ultrasounds
  • Vibration
  • Waves

Readers

  • Materials Science and Engineering.
  • Mathematics or Statistics
  • Structural Health Monitoring of Composite Structures.