Fricción interna debida a la interacción entre dislocaciones y Átomos solutos
A theory ie developed to explain an internal friction peak which is observed after cold-work in bcc metáis containing impurity atoma in interstitial solute-solution. In contrast to previous assumptions it is proposed that the elastic relaxation is directly caused by the movement of dislocations. The...
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Formato: | Informe Técnico |
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Comisión Nacional de Energía Atómica (CNEA)
2017
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I64-R170-10665-527 |
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Comisión Nacional de Energía Atómica (CNEA) |
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I-64 |
repository_str |
R-170 |
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Nuclea - Repositorio Institucional de la Comisión Nacional de Energía Atómica (CNEA) |
topic |
INFORMES |
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INFORMES Schoeck, Gunther Fricción interna debida a la interacción entre dislocaciones y Átomos solutos |
topic_facet |
INFORMES |
description |
A theory ie developed to explain an internal friction peak which is observed after cold-work in bcc metáis containing impurity atoma in interstitial solute-solution. In contrast to previous assumptions it is proposed that the elastic relaxation is directly caused by the movement of dislocations. The dislocations are normally locked by impurity atmospheres but can move at the peak temperature by dragging the solute atome along. The dislocations are assumed to be anchored at inmobile precipitates or clusters of solute atome distributed at intervals along the dislocations line. Two limiting cases of dislocations oscillation are considered with amplitudes large and small compared with the interatomic distance b, It is found that the peak hight and the relaxation time (and hence the peak teperature) depend on structural details such as average free longth between precipitates, their distribution function and the concentration of solute atoms. |
format |
Informe Técnico |
author |
Schoeck, Gunther |
author_facet |
Schoeck, Gunther |
author_sort |
Schoeck, Gunther |
title |
Fricción interna debida a la interacción entre dislocaciones y Átomos solutos |
title_short |
Fricción interna debida a la interacción entre dislocaciones y Átomos solutos |
title_full |
Fricción interna debida a la interacción entre dislocaciones y Átomos solutos |
title_fullStr |
Fricción interna debida a la interacción entre dislocaciones y Átomos solutos |
title_full_unstemmed |
Fricción interna debida a la interacción entre dislocaciones y Átomos solutos |
title_sort |
fricción interna debida a la interacción entre dislocaciones y átomos solutos |
publisher |
Comisión Nacional de Energía Atómica (CNEA) |
publishDate |
2017 |
work_keys_str_mv |
AT schoeckgunther friccioninternadebidaalainteraccionentredislocacionesyatomossolutos |
bdutipo_str |
Repositorios |
_version_ |
1764820546964422661 |