Search
Search Results
-
Dynamic impact constitutive model of 6008 aluminum alloy based on evolution dislocation density
In this study, a systematic experimental evaluation of 6008 Al alloys was conducted using split Hopkinson pressure bar equipment and a transmission...
-
An iterative blending integrating grinding force model considering grain size and dislocation density evolution
The dynamic force load in grinding process is considered as a crucial factor affecting the quality of parts, and a better understanding of the...
-
Dislocation Accumulation Due to Plastic Slip
First, the accumulationAccumulation of dislocations and annihilationAnnihilation of dislocationsDislocation annihilation of statistically stored...
-
A study of the effect of dual shot peening on the surface integrity of carburized steel: combined experiments with dislocation density-based simulations
As a novel processing technology for high surface integrity, dual shot peening enables improvement in residual compressive stress, hardness gradient,...
-
Plastic Shear Strain and Dislocation Movement
Some basic concepts in plastic slip deformation of crystalline materials, movement of dislocations, and plastic shear strain realized by the...
-
Modeling of the polycrystalline cutting of austenitic stainless steel based on dislocation density theory and study of burr formation mechanism
The presence of burrs in mechanical processing can negatively affect surface integrity and dimensional accuracy and even lead to part scrap**....
-
Dislocation density model and microstructure of 7A85 aluminum alloy during thermal deformation
The microstructure evolution of 7A85 aluminum alloy at the conditions of strain rate (0.001 − 1 s −1 ) and deformation temperature (250–450 °C) was...
-
Generation of Atomic Vacancies by Dislocation Pair Annihilation
Density of atomic vacanciesAtomic vacancies increases rapidly during plastic deformation and these vacancies play roles in diverse aspects of the...
-
Prediction of Microstructure Evolution of Cold Sprayed Coatings Using a Dislocation Density Based Constitutive Model
A dislocation density based model is implemented as a user hardening subroutine in Abaqus within the Eulerian finite element framework to predict the...
-
-
Dislocation Analysis of Laser-Sintered Al Alloy Nanoparticles in Using Molecular Dynamics Simulation
Additive manufacturing (AM) processes have proved to be the most efficient manufacturing techniques over the past decade due to the ease of...
-
A dislocation density-based model for the work hardening and softening behaviors upon stress reversal
The mechanical behaviours of microalloyed and low-carbon steels under strain reversal were modelled based on the average dislocation density taking...
-
Revealing dislocation activity modes during yielding and uniform deformation of low-temperature tempered steel by acoustic emission
The distinctive distribution of acoustic emission (AE) characteristic parameters generated during tensile testing of low-temperature tempered AISI...
-
Dislocation gliding in a freestanding film submitted to uniaxial stress
The equilibrium positions of an edge dislocation embedded in a freestanding thin film submitted to uniaxial stress have been characterized from a...
-
Renormalized Energy of a Dislocation Loop in a 3D Anisotropic Body
The paper presents a rigorous analysis of the singularities of elastic fields near a dislocation loop in a body of arbitrary material symmetry that...
-
Electro-Elastic Analysis of Edge Dislocation Dipole in GaN Using XFEM
This work presents the numerical analysis of edge dislocation dipole for the evaluation of the electro-elastic fields in gallium nitride (GaN)...
-
-
Influence of Deformation Temperature On Flow Stress and Dislocation Structure of 2A12 Aluminum Alloy Under Quasi-Static and Dynamic Compression
BackgroundIn many constitutive models for dynamic strain aging of aluminum alloys, the athermal component of flow stress was commonly assumed to be...
-
Effect of high-density pulsed electric current on the formability of aluminum alloy
In this study, an energy-saving and highly efficient high-density pulsed electric current (HDPEC) method was used to improve the formability of the...
