Beyond modified mean field: a case for a stochastic grain growth model

2020 ◽  
Vol 100 (7) ◽  
pp. 837-856
Author(s):  
Chandra S. Pande ◽  
Alex E. Moser
Keyword(s):  
Grain Growth ◽  
Growth Model ◽  
Mean Field ◽  
Grain Growth Model

Growth History of Individual Grains in Polycrystals: Theoretical Model and Simulation Studies

2012 ◽  
Vol 715-716 ◽  
pp. 877-882 ◽  
Author(s):  
Dana Zöllner ◽  
Peter Streitenberger
Keyword(s):  
Grain Growth ◽  
Growth Model ◽  
Mean Field ◽  
Triple Junctions ◽  
Average Growth ◽  
Model And Simulation ◽  
Growth History ◽  
History Of ◽  
Grain Growth Model ◽  
Individual Grains

A 3D grain growth model is developed based on a generalised mean-field approach. It allows the prediction of the growth history of individual grains of a polycrystal during normal grain growth, which has been compared with results from Monte Carlo Potts simulations showing a good agreement. Based on a stochastic grain growth model the diffusivity of the Brownian-like motion of individual quadruple points and triple junctions in 2D sections can be related to the average growth rate providing a possibility for the determination of the average growth law of the grain ensemble solely from the stochastic growth behaviour of single grains.

scholarly journals Critical conditions and grain growth model for dynamic recrystallization of Cu-Ni-Si alloy

2019 ◽  
Vol 15 ◽  
pp. 102593 ◽  
Author(s):  
Jinlong Zhang ◽  
Zhenlin Lu ◽  
Lei Jia ◽  
Hui Xie ◽  
Shiping Tao ◽  
...  
Keyword(s):  
Dynamic Recrystallization ◽  
Grain Growth ◽  
Growth Model ◽  
Critical Conditions ◽  
Grain Growth Model

Grain growth model of IN718 during holding period after hot deformation

2000 ◽  
Vol 101 (1-3) ◽  
pp. 25-30 ◽  
Author(s):  
J.M Zhang ◽  
Z.Y Gao ◽  
J.Y Zhuang ◽  
Z.Y Zhong
Keyword(s):  
Grain Growth ◽  
Growth Model ◽  
Hot Deformation ◽  
Holding Period ◽  
Grain Growth Model

scholarly journals Microstructure Evolution and Grain Growth Model of AZ31 Magnesium Alloy under Condition of Isothermal

2015 ◽  
Vol 2015 ◽  
pp. 1-6
Author(s):  
Zhongtang Wang ◽  
Lingyi Wang ◽  
Lizhi Liu
Keyword(s):  
Grain Size ◽  
Magnesium Alloy ◽  
Grain Growth ◽  
Growth Model ◽  
Microstructure Evolution ◽  
Heating Temperature ◽  
Holding Time ◽  
Az31 Magnesium Alloy ◽  
Temperature Range ◽  
Grain Growth Model

Microstructure evolution of AZ31 magnesium alloy in annealing process had been investigated by experiment study at heating temperature range of 150°C–450°C and holding time range of 15 min–60 min. The effects of heating temperature and holding time on grain growth had been analyzed. The results presented that the grain size tends to grow up with the increase of holding time at a certain temperature. At a certain holding time, the grain size increased firstly and then decreased at the heating temperature range of 150–250°C. And when heating temperature is higher than 250°C, the grain grows up gradually with the increase of heating temperature. The grain growth model of AZ31 Mg alloy has been established by regression based on the experimental data at temperature of 250–450°C, and the relative error between model calculation results and experimental results is less than 19.07%. Activation energy of grain growth of AZ31 magnesium alloy had been determined.

Temperature-dependent grain growth model for AMTEC electrodes

2004 ◽  
Vol 135 (1-2) ◽  
pp. 304-310 ◽  
Author(s):  
M.A.K. Lodhi ◽  
Siew Choo Soon ◽  
M. Mohibullah
Keyword(s):  
Grain Growth ◽  
Growth Model ◽  
Temperature Dependent ◽  
Grain Growth Model
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