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Title: Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys

The unit processes of precipitate-dislocation interaction in dilute Mg-Nd alloys are elucidated through in situ indentation experiments in TEM. Results suggest that pinned dislocations can glide along the broad facets of extended β1 precipitates, a common strengthening phase in Mg- rare earth (RE) alloys. A dislocation-theory based analysis suggests that the shape, spacing and orientation (with respect to the glide plane) of β1 precipitates may favor glide of pinned dislocations along interfaces as opposed to the classical mechanism of bowing and looping around the precipitate.
Authors:
 [1] ;  [1] ;  [1]
  1. Univ. of Michigan, Ann Arbor, MI (United States)
Publication Date:
Grant/Contract Number:
SC0008637
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1500039

Huang, Zhihua, Allison, John E., and Misra, Amit. Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys. United States: N. p., Web. doi:10.1038/s41598-018-20629-1.
Huang, Zhihua, Allison, John E., & Misra, Amit. Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys. United States. doi:10.1038/s41598-018-20629-1.
Huang, Zhihua, Allison, John E., and Misra, Amit. 2018. "Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys". United States. doi:10.1038/s41598-018-20629-1. https://www.osti.gov/servlets/purl/1500039.
@article{osti_1500039,
title = {Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys},
author = {Huang, Zhihua and Allison, John E. and Misra, Amit},
abstractNote = {The unit processes of precipitate-dislocation interaction in dilute Mg-Nd alloys are elucidated through in situ indentation experiments in TEM. Results suggest that pinned dislocations can glide along the broad facets of extended β1 precipitates, a common strengthening phase in Mg- rare earth (RE) alloys. A dislocation-theory based analysis suggests that the shape, spacing and orientation (with respect to the glide plane) of β1 precipitates may favor glide of pinned dislocations along interfaces as opposed to the classical mechanism of bowing and looping around the precipitate.},
doi = {10.1038/s41598-018-20629-1},
journal = {Scientific Reports},
number = 1,
volume = 8,
place = {United States},
year = {2018},
month = {2}
}