Accession Number:

AD0729364

Title:

Material Properties Measurements Using Pulsed Electron Beams

Descriptive Note:

Final rept.

Corporate Author:

PHYSICS INTERNATIONAL CO SAN LEANDRO CA

Report Date:

1971-07-01

Pagination or Media Count:

133.0

Abstract:

A technique was developed for measuring the elevated-temperature tensile properties of materials following instantaneous in-depth heating. High-energy pulsed electron beams are used to heat specimens to the required temperature in approximately 0.08 microsec, and a Hopkinson bar-type device, in a tensile configuration, is used to perform the mechanical tests at any desired time after irradiation. Data on the temperature-induced degradation of the Youngs Modulus and the yield stress of 2014-T6 aluminum and commercially pure alpha titanium was obtained. The data extend up to approximately 700 F for three different times at temperature 0.2 msec, 1.0 msec and 10 msec. The results indicate that the Youngs Modulus at ambient pressure appears to be a function of temperature only. The degradation of the yield strength is time- and temperature-dependent but not as severe as that shown by the long-heating-time and book data.

Subject Categories:

  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE