Internal Friction And Young's Modulus In Irradiated Tungsten

Journal Article · Tue May 01 04:00:00 EDT 1962 · Journal of Applied Physics (U.S.)

DOI:https://doi.org/10.1063/1.1728836· OSTI ID:4836143

Muss, D R; Townsend, J R

Measurements of internal friction and Young's modulus as functions of temperature and 13.7-Mev deuteron bombardment flux are reported for polycrystalline tungsten. A dislocation-relaxation peak in the internal friction as a function of temperature is observed. The peak height is found to be reduced by irradiation. The background internal friction decreases and the modulus increases with bombarding flux. The experimental results for modulus change with bombardment is shown to fit a simple dislocation pinning model. The effect of immobile radiation-induced vacancies on Young's modulus in tungsten is observed to be -0.44% per atomic percent of vacancies. (auth)

• Research Organization: Univ. of Pittsburgh
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-022661
• OSTI ID: 4836143
• Journal Information: Journal of Applied Physics (U.S.), Journal Name: Journal of Applied Physics (U.S.) Vol. Vol: 33; ISSN JAPIA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CRYSTALS
DEFECTS
DEUTERON BEAMS
DISLOCATIONS
ELASTICITY
ENERGY
FRICTION
IRRADIATION
LATTICES
MEASURED VALUES
METALS, CERAMICS, AND OTHER MATERIALS
RADIATION EFFECTS
TEMPERATURE
TUNGSTEN
VACANCIES