Hydrogen Effects on the Character of Dislocations in High-purity Aluminum

  title={Hydrogen Effects on the Character of Dislocations in High-purity Aluminum},
  author={Paulo Jorge Pires Ferreira and Ian M Robertson and Howard K. Birnbaum},
ÐThe e€ect of hydrogen in solid solution on the edge/screw character of dislocations has been investigated by deforming samples of high-purity aluminum in a gaseous hydrogen environment in situ in a controlled environment transmission electron microscope. Solute hydrogen was found to stabilize edge segments of dislocations, which inhibited, and in some cases stopped dislocations from cross-slipping. Removal of hydrogen from the sample allowed the cross-slip process to continue. These… CONTINUE READING

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