Hydrogen effects on the interaction between dislocations Export

@article{citeulike:1538165, abstract = {The effect of hydrogen on the interaction between dislocations and other elastic centers (impurity atoms and dislocations) in 310 S stainless steel and high-purity aluminum has been directly observed during deformation experiments in situ in an environmental cell transmission electron microscope. In 310 S stainless steel, the presence of hydrogen was observed to reduce the elastic interactions between obstacles and perfect and partial dislocations; thus, enhancing the mobility of the dislocations. In high-purity aluminum, the introduction and removal of hydrogen from the system was observed to cause a reversal in the direction of motion of the dislocations piled up against a barrier; consistent with a reduction of the elastic interactions by solute hydrogen. These observations provide direct support for the hydrogen shielding mechanism that has been proposed to account for the observed hydrogen-enhanced mobility of dislocations.}, author = {Ferreira, P. J. and Robertson, I. M. and Birnbaum, H. K.}, citeulike-article-id = {1538165}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/S1359-6454(97)00349-2}, citeulike-linkout-1 = {http://www.sciencedirect.com/science/article/B6TW8-3TTV5KB-Y/2/c0616e3dc7ecc4636a7f6414f20283d8}, day = {2}, doi = {10.1016/S1359-6454(97)00349-2}, journal = {Acta Materialia}, keywords = {dislocation, hydrogen}, month = {March}, number = {5}, pages = {1749--1757}, posted-at = {2007-08-06 14:51:14}, priority = {2}, title = {Hydrogen effects on the interaction between dislocations}, url = {http://dx.doi.org/10.1016/S1359-6454(97)00349-2}, volume = {46}, year = {1998} }

TY - JOUR ID - citeulike:1538165 L3 - citeulike-article-id:1538165 N2 - The effect of hydrogen on the interaction between dislocations and other elastic centers (impurity atoms and dislocations) in 310 S stainless steel and high-purity aluminum has been directly observed during deformation experiments in situ in an environmental cell transmission electron microscope. In 310 S stainless steel, the presence of hydrogen was observed to reduce the elastic interactions between obstacles and perfect and partial dislocations; thus, enhancing the mobility of the dislocations. In high-purity aluminum, the introduction and removal of hydrogen from the system was observed to cause a reversal in the direction of motion of the dislocations piled up against a barrier; consistent with a reduction of the elastic interactions by solute hydrogen. These observations provide direct support for the hydrogen shielding mechanism that has been proposed to account for the observed hydrogen-enhanced mobility of dislocations. IS - 5 JF - Acta Materialia EP - 1757 TI - Hydrogen effects on the interaction between dislocations VL - 46 SP - 1749 KW - dislocation KW - hydrogen AU - Ferreira, PJ AU - Robertson, IM AU - Birnbaum, HK PY - 1998/03/02/ UR - http://dx.doi.org/10.1016/S1359-6454(97)00349-2 ER -