Phase field simulation of spinodal decomposition under external magnetic field

2010 ◽  
Vol 322 (8) ◽  
pp. 978-986 ◽  
Author(s):  
L.X. Lv ◽  
L. Zhen ◽  
C.Y. Xu ◽  
X.Y. Sun
2011 ◽  
Vol 172-174 ◽  
pp. 1060-1065 ◽  
Author(s):  
Wei Xiong ◽  
Klara Asp Grönhagen ◽  
John Ågren ◽  
Malin Selleby ◽  
Joakim Odqvist ◽  
...  

This work is dedicated to simulate the spinodal decomposition of Fe-Cr bcc (body centered cubic) alloys using the phase field method coupled with CALPHAD modeling. Thermodynamic descriptions have been revised after a comprehensive review of information on the Fe-Cr system. The present work demonstrates that it is impossible to reconcile the ab initio enthalpy of mixing at the ground state with the experimental one at 1529 K using the state-of-the-art CALPHAD models. While the phase field simulation results show typical microstructure of spinodal decomposition, large differences have been found on kinetics among experimental results and simulations using different thermodynamic inputs. It was found that magnetism plays a key role on the description of Gibbs energy and mobility which are the inputs to phase field simulation. This work calls for an accurate determination of the atomic mobility data at low temperatures.


2019 ◽  
Vol 126 (8) ◽  
pp. 085102
Author(s):  
Y. H. Wang ◽  
D. C. Zhang ◽  
Z. P. Pi ◽  
J. G. Lin ◽  
Cuie Wen

2020 ◽  
Vol 127 (9) ◽  
pp. 095103
Author(s):  
Shushan Cui ◽  
Jianfeng Wan ◽  
Nailu Chen ◽  
Yonghua Rong

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