LOW-TEMPERATURE STRESS-RELAXATION PEAKS IN PLASTICALLY DEFORMED POLYCRYSTALLINE NIOBIUM
Observations of stress-relaxation absorption peaks at low temperatures are related for a plastically deformed b.c.c. metal. Acoustic energy absorption peaks for frequencies in the tens of kilocycles were observed at l0 and 165 deg K in plastically deformed, polycrystalline niobium. Measurements of interal friction were made at 4 to 300 deg K by a resonant-bar technique in which alternating longitudinal stress at 10 to 100 kc/sec was employed. The use of electromagnetic transducers permitted measurements at strain amplitudes of 10/sup -8/ to 10/sup -4/. (B.O.G.)
- Research Organization:
- General Atomic Div., General Dynamics Corp., San Diego, Calif.
- NSA Number:
- NSA-15-000662
- OSTI ID:
- 4126330
- Journal Information:
- Acta Met., Journal Name: Acta Met. Vol. Vol: 8
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
THE LOW TEMPERATURE TENSILE PROPERTIES OF NIOBIUM
cap alpha. peak in cold-worked and hydrogen-loaded niobium
DISLOCATION RELAXATION SPECTRA IN PLASTICALLY DEFORMED REFRACTORY BCC METALS
Journal Article
·
Sat Oct 01 00:00:00 EDT 1960
· Acta Met.
·
OSTI ID:4110297
cap alpha. peak in cold-worked and hydrogen-loaded niobium
Journal Article
·
Sat Jul 01 00:00:00 EDT 1978
· Scr. Metall.; (United States)
·
OSTI ID:6556905
DISLOCATION RELAXATION SPECTRA IN PLASTICALLY DEFORMED REFRACTORY BCC METALS
Technical Report
·
Tue Aug 01 00:00:00 EDT 1961
·
OSTI ID:4843488