Published February 1970
| Version v1
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Internal friction measurement with a kilohertz range test facility of cold-worked and neutron-irradiated gold
Description
The author studies properties of the Bordoni peak in 99,999 % gold. The following features are considered: - influence of type and rate of cold-work on relaxation strength. After traction cold-work, the height of the Bordoni peak is roughly proportional to the rate of plastic deformation, - relaxation features. The relaxation energies and attempt frequencies of the Bordoni peak are determined for poly - and single crystals. The broadening of experimental peaks is studied, - effect of dislocation pinning on the Bordoni peak. One shows that the experience leads to a relation: Q-1max ∼ Λl2 where Q-1max is the height of the peak, Λ the dislocation density and l the mean loop length of dislocations which are implied in the phenomenon
Abstract (French)
L'auteur etudie diverses proprietes du pic de Bordoni dans l'or 99,999 %. Les points suivants sont abordes: - influence du mode d'ecrouissage sur l'intensite de relaxation. Apres des deformations plastiques par traction, la hauteur du pic de Bordoni est grossierement proportionnelle au taux d'ecrouissage, - caracteristiques de relaxation. Les energies de relaxation et les frequences d'attaque associees au pic de Bordoni sont determinees dans le cas de polycristaux et de monocristaux. L'elargissement des pics experimentaux est etudie, - effet de l'epinglage des dislocations sur le pic de Bordoni. On montre que l'experience conduit a une relation liant la hauteur du pic QG, a la densite A et a la longueur moyenne Z des dislocations participant au phenomene: Q-1max ∼ Λl2Files
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Additional details
Additional titles
- Original title (French)
- Mesure du frottement interieur de l'or ecroui et irradie aux neutrons sur une installation travaillant dans le domaine du Kilohertz
Identifiers
Publishing Information
- Imprint Pagination
- 179 p.
- Report number
- INIS-FR--17-0462
INIS
- Country of Publication
- Switzerland
- Country of Input or Organization
- Switzerland
- INIS RN
- 48047321
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- AMPLIFIERS; ANALOG-TO-DIGITAL CONVERTERS; ANNEALING; BORDONI PEAK; COLD WORKING; DIGITAL-TO-ANALOG CONVERTERS; DISLOCATION PINNING; FREQUENCY MEASUREMENT; GOLD; INTERNAL FRICTION; KHZ RANGE; MECHANICAL TESTS; MONOCRYSTALS; POINT DEFECTS; POLYCRYSTALS; POST-IRRADIATION EXAMINATION; STRESS RELAXATION; YOUNG MODULUS
- Descriptors DEC
- CRYSTAL DEFECTS; CRYSTAL STRUCTURE; CRYSTALS; ELECTRONIC EQUIPMENT; ELEMENTS; EQUIPMENT; FABRICATION; FREQUENCY RANGE; FRICTION; HEAT TREATMENTS; MATERIALS TESTING; MATERIALS WORKING; MECHANICAL PROPERTIES; METALS; RELAXATION; TESTING; TRANSITION ELEMENTS
Optional Information
- Notes
- 70 refs.; Available from the INIS Liaison Officer for France, see the 'INIS contacts' section of the INIS website for current contact and E-mail addresses: http://www.iaea.org/inis/Contacts/