scholarly journals Plastic deformation of multicrystalline thin films: Grain size distribution vs. grain orientation

2012 ◽  
Vol 52 (1) ◽  
pp. 20-24 ◽  
Author(s):  
Saurabh Puri ◽  
Anish Roy
2011 ◽  
Vol 409 ◽  
pp. 597-602
Author(s):  
Yuichi Mizuno ◽  
Kenji Okushiro ◽  
Yoshiyuki Saito

Grain boundary migration in materials under severe plastic deformation was simulated by the phase field methods. The interface energy and dislocation density on growth kinetics were simulated on systems of 2-dimensional lattice. .In inhomogeneous systems grain size distributions in simulated grain structures were binodal distributions. The classification of the solution of differential equations based on the mean-field Hillert model describing temporal evolution of the scaled grain size distribution function was in good agreement with those given by the Computer simulations. Effect of dislocation on thermodynamic stability was taken into consideration. Dislocation density distribution was calculated by a equation based on the diffusion-reaction equation.. Scaled grain size distribution was known to be affected by the dislocation.


2004 ◽  
Vol 110 (3) ◽  
pp. 240-242 ◽  
Author(s):  
J Jeong ◽  
S.P Choi ◽  
K.J Hong ◽  
Y.T O ◽  
H.J Song ◽  
...  

2018 ◽  
Vol 284 ◽  
pp. 431-435 ◽  
Author(s):  
Alexey V. Stolbovsky ◽  
Elena Farafontova

Analysis of histograms of grain size distribution of materials nanostructured by severe plastic deformation has been carried out using statistical analysis methods. It has been established that in materials with quite homogeneous nanostructure, the fitting of histograms of grain size distribution by using a logarithmic standard distribution is not accurate enough. It is proposed to compensate for the observed imprecision by including into the model the additional component – normal distribution. It is shown that this approach is applicable to nanostructured materials with both the deformation-origin nanostructure and the grain structure formed during annealing.


Sign in / Sign up

Export Citation Format

Share Document