Material Properties Measurements Using Pulsed Electron Beams
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 Young's 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 Young's 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1971
- Accession Number
- AD0729364
Entities
People
- Aldo Mazzella
- James Shea
- Kenneth Triebes
- Tibor Stefansky