Elastic and plastic deformation behavior of helium nano-bubbled single crystal copper: an atomistic simulation study

2021 ◽  
pp. 152988
Author(s):  
Anupam Neogi ◽  
Hesam Askari ◽  
Niaz Abdolrahim
Keyword(s):  
Plastic Deformation ◽  
Single Crystal ◽  
Simulation Study ◽  
Deformation Behavior ◽  
Atomistic Simulation ◽  
Single Crystal Copper ◽  
Plastic Deformation Behavior ◽  
Elastic And Plastic Deformation

scholarly journals Elastic and Plastic Deformation Behavior Studied by In-Situ Synchrotron X-ray Diffraction in Nanocrystalline Nickel

2016 ◽  
Vol 57 (9) ◽  
pp. 1447-1453 ◽  
Author(s):  
Hiroki Adachi ◽  
Yui Karamatsu ◽  
Shota Nakayama ◽  
Tomotaka Miyazawa ◽  
Masugu Sato ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Deformation Behavior ◽  
X Ray Diffraction ◽  
Nanocrystalline Nickel ◽  
X Ray ◽  
Plastic Deformation Behavior ◽  
Elastic And Plastic Deformation

scholarly journals Temperature dependence of elastic and plastic deformation behavior of a refractory high-entropy alloy

2020 ◽  
Vol 6 (37) ◽  
pp. eaaz4748 ◽  
Author(s):  
Chanho Lee ◽  
George Kim ◽  
Yi Chou ◽  
Brianna L. Musicó ◽  
Michael C. Gao ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Neutron Diffraction ◽  
Deformation Behavior ◽  
Elevated Temperatures ◽  
High Entropy ◽  
Plastic Deformation Behavior ◽  
Deformation Behaviors ◽  
In Situ Neutron Diffraction ◽  
Elastic And Plastic Deformation

Single-phase solid-solution refractory high-entropy alloys (HEAs) show remarkable mechanical properties, such as their high yield strength and substantial softening resistance at elevated temperatures. Hence, the in-depth study of the deformation behavior for body-centered cubic (BCC) refractory HEAs is a critical issue to explore the uncovered/unique deformation mechanisms. We have investigated the elastic and plastic deformation behaviors of a single BCC NbTaTiV refractory HEA at elevated temperatures using integrated experimental efforts and theoretical calculations. The in situ neutron diffraction results reveal a temperature-dependent elastic anisotropic deformation behavior. The single-crystal elastic moduli and macroscopic Young’s, shear, and bulk moduli were determined from the in situ neutron diffraction, showing great agreement with first-principles calculations, machine learning, and resonant ultrasound spectroscopy results. Furthermore, the edge dislocation–dominant plastic deformation behaviors, which are different from conventional BCC alloys, were quantitatively described by the Williamson-Hall plot profile modeling and high-angle annular dark-field scanning transmission electron microscopy.

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