• Aucun résultat trouvé

A rate theory of dislocation mobility

N/A
N/A
Protected

Academic year: 2021

Partager "A rate theory of dislocation mobility"

Copied!
8
0
0

Texte intégral

Figure

FIG.  2.  The  stress  clcpendencc  of  the  clislocatio~i  velocity in Ge accoi.cling to linbler(LiJ  for GO"  clislocations
FIG.  3.  Thc  stress  relaxation  of  ice  s~ngle crystal.'?"
FIG.  4.  The effcct  of  the  stress exponent  ti  on  the yield

Références

Documents relatifs

When these mechanisms are known, the plastic behavior of crystals (for ip > 0) can be predicted and probably changed in a controlled way. It has also been shown that

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des

6 for the activation energy of the process suggests that hydrogen is indeed associated, and the observed relaxation is of the Snoek-type. This difference is due mainly to the

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des

to be of the order of magnitude of the Debye frequency.This means that if there is an observable relaxation strength (i.e., the L values are sufficiently large) the

Therefore, the unified dislocation damping theory associated with the point defect dragging developed by Ogurtani /14/ is strictly valid in the calculation of the displacement

(10) If crack tip plasticity is controlled by existing dislocations, and if the temperature and stress dependence of dislocation velocity and the dislocation

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des