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

Abstract

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:
Research Org.:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1500039
Grant/Contract Number:  
SC0008637
Resource 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
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Huang, Zhihua, Allison, John E., and Misra, Amit. Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys. United States: N. p., 2018. 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. Fri . "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}
}

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Cited by: 7 works
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Works referenced in this record:

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    Works referencing / citing this record:

    Basal dislocation/precipitate interactions in Mg–Al alloys: an atomistic investigation
    journal, July 2019

    • Esteban-Manzanares, Gustavo; Ma, Anxin; Papadimitriou, Ioannis
    • Modelling and Simulation in Materials Science and Engineering, Vol. 27, Issue 7
    • DOI: 10.1088/1361-651x/ab2de0

    PRISMS: An Integrated, Open-Source Framework for Accelerating Predictive Structural Materials Science
    journal, August 2018