On the creep transition from superplastic behavior to nanocrystalline behavior

The present analysis shows that the creep transition from superplastic behavior to nanocrystalline behavior can be defined by an expression, which relates the normalized grain size, d/b (b is the Burgers vector) to the normalized shear stress, τ/G (G is the shear modulus).

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2016-02, Vol.655, p.396-398
Main Author: Mohamed, Farghalli A.
Format: Article
Language:English
Subjects:
Boundary sliding
Burgers vector
Creep (materials)
Creep transition
Dislocation climb
Dislocation pileup
Grain size
Microstructure
Nanocrystalline materials
Nanocrystals
Shear modulus
Shear stress
Superplasticity
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Description
Summary:The present analysis shows that the creep transition from superplastic behavior to nanocrystalline behavior can be defined by an expression, which relates the normalized grain size, d/b (b is the Burgers vector) to the normalized shear stress, τ/G (G is the shear modulus).
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2015.11.095