Seventy years of Hall-Petch, ninety years of superplasticity and a generalized approach to the effect of grain size on flow stress
The grain size, and therefore the grain boundary density, is known to play a major role in the
flow stress of metallic materials. A linear relationship to the inverse of the square root of the …
flow stress of metallic materials. A linear relationship to the inverse of the square root of the …
Structural evolutions of metallic materials processed by severe plastic deformation
Abstract Bulk nanostructured (ns)/ultrafine-grained (UFG) metallic materials possess very
high strength, making them attractive for high strength, lightweight and energy efficient …
high strength, making them attractive for high strength, lightweight and energy efficient …
Adiabatic shear localization induced by dynamic recrystallization in an FCC high entropy alloy
Due to their strong strain hardening, face-centered cubic (FCC) high/medium entropy alloys
(H/MEAs) have remarkable resistance to shear localization even under forced dynamic …
(H/MEAs) have remarkable resistance to shear localization even under forced dynamic …
Effect of nanocrystalline and ultrafine grain sizes on the strain rate sensitivity and activation volume: fcc versus bcc metals
Two of the key parameters that are useful for understanding the deformation kinetics in
metals with ultrafine grain (UFG) and/or nanocrystalline (nc) microstructure are the strain …
metals with ultrafine grain (UFG) and/or nanocrystalline (nc) microstructure are the strain …
Temperature rise associated with adiabatic shear band: causality clarified
One of the most important issues related to adiabatic shear failure is the correlation among
temperature elevation, adiabatic shear band (ASB) formation and the loss of load capacity of …
temperature elevation, adiabatic shear band (ASB) formation and the loss of load capacity of …
Size effects on the mechanical properties of nanocrystalline NbMoTaW refractory high entropy alloy thin films
The newly-surged high-entropy alloys (HEAs), in particular the refractory HEAs, manifest
excellent properties for practice applications. In this work, we systematically investigated the …
excellent properties for practice applications. In this work, we systematically investigated the …
Strain hardening, strain rate sensitivity, and ductility of nanostructured metals
This paper presents an overview of the strain hardening and strain rate hardening behavior
of nanostructured and ultrafine-grained metals. The experimental findings obtained in our …
of nanostructured and ultrafine-grained metals. The experimental findings obtained in our …
Strain rate effects in the ultrafine grain and nanocrystalline regimes—influence on some constitutive responses
Q Wei - Journal of materials science, 2007 - Springer
Mounting evidence is pointing to some emerging novel behaviors of metals with ultrafine-
grain (UFG) and/or nanocrystalline (NC) microstructures. One such novel behavior is related …
grain (UFG) and/or nanocrystalline (NC) microstructures. One such novel behavior is related …
Mechanical behavior and dynamic failure of high-strength ultrafine grained tungsten under uniaxial compression
We have systematically investigated the quasi-static and dynamic mechanical behavior
(especially dynamic failure) of ultra-fine grained (UFG) tungsten (W) under uniaxial …
(especially dynamic failure) of ultra-fine grained (UFG) tungsten (W) under uniaxial …
Adiabatic shear banding in ultrafine-grained Fe processed by severe plastic deformation
We have investigated the plastic deformation behavior of ultrafine-grained (UFG) bulk Fe.
The UFG microstructure (grain size∼ 300 and∼ 150 nm) was obtained through combined …
The UFG microstructure (grain size∼ 300 and∼ 150 nm) was obtained through combined …