Phase-field simulation of dose rate effect on the Cu precipitation with neutron irradiation

2021 ◽  
Vol 23 (7) ◽  
pp. 4217-4229
Author(s):  
Shahid Maqbool ◽  
Yongsheng Li ◽  
Suleman Muhammad ◽  
Zhengwei Yan ◽  
Shujing Shi
Keyword(s):  
Dose Rate ◽  
Neutron Irradiation ◽  
Phase Field ◽  
Volume Fraction ◽  
Rate Effect ◽  
Phase Field Simulation ◽  
Field Simulation ◽  
Cu Alloys ◽  
Dose Rate Effect

Radiation-enhanced precipitation (REP) in Fe–Cu alloys results in higher volume fraction and radius of Cu precipitates.

scholarly journals Quantitative Phase-Field Simulation of Composition Partition and Separation Kinetics of Nanoscale Phase in Fe-Cr-Al Alloy

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Shi Chen ◽  
Yongsheng Li ◽  
Shujing Shi ◽  
Shengshun Jin
Keyword(s):  
Phase Separation ◽  
Phase Field ◽  
Ostwald Ripening ◽  
Volume Fraction ◽  
Phase Interface ◽  
Al Alloy ◽  
Average Particle ◽  
Phase Field Simulation ◽  
Field Simulation ◽  
Separation Kinetics

Phase separation of the Cr-enriched nanoscale α′ phase in the Fe-38 at.% Cr-10 at.% Al alloy is studied by utilizing phase-field simulation. The partition of elements in the α and α′ phases is clarified with the composition evolution through the α/α′ phase interface, and the separation kinetics is quantitatively investigated by the temporal evolution of the size and volume fraction of the α′ phase. Aluminum partitions into the Fe-enriched α phase and depletes in the α′ phase, and the partition coefficient decreases as the temperature changes from 720 K to 760 K for the steady-state coarsening stage. As the temperature increases, the initial change rate of the volume fraction of the α′ phase is faster, indicating an accelerated phase separation. At the coarsening stage, the average particle distance and coarsening rate constant of the α′ phase increase with increased temperature, and the ratio of the Ostwald ripening is dominating compared with coalescence coarsening. The element partition and kinetics evolution of the α′ phase with temperature are helpful for the morphology and property predication of nanoscale precipitates.

Phase-field simulation of 2-D Ostwald ripening in the high volume fraction regime

2002 ◽  
Vol 50 (8) ◽  
pp. 1895-1907 ◽  
Author(s):  
Danan Fan ◽  
S.P. Chen ◽  
Long-Qing Chen ◽  
P.W. Voorhees
Keyword(s):  
Phase Field ◽  
Ostwald Ripening ◽  
Volume Fraction ◽  
High Volume ◽  
High Volume Fraction ◽  
Phase Field Simulation ◽  
Field Simulation

scholarly journals Phase-Field Simulation of Microsegregation and Dendritic Growth During Solidification of Hypoeutectic Al-Cu alloys

2017 ◽  
Vol 20 (2) ◽  
pp. 423-429 ◽  
Author(s):  
Alexandre Furtado Ferreira ◽  
Késsia Gomes Paradela ◽  
Paulo Felipe Junior ◽  
Zilmar Alcântara Júnior ◽  
Amauri Garcia
Keyword(s):  
Phase Field ◽  
Dendritic Growth ◽  
Phase Field Simulation ◽  
Field Simulation ◽  
Cu Alloys

The ultrahigh discharge efficiency and energy density of P(VDF-HFP) via electrospinning-hot press with St-MMA copolymer

2021 ◽  
Author(s):  
Jian Wang ◽  
Yunchuan Xie ◽  
Yifei Zhang ◽  
Biyun Peng ◽  
Qizheng Li ◽  
...  
Keyword(s):  
Energy Density ◽  
Phase Field ◽  
Composite Films ◽  
Experimental Tests ◽  
Hot Press ◽  
Phase Field Simulation ◽  
Field Simulation ◽  
Discharge Efficiency

Flory–Huggins theory combined with experimental tests and phase-field simulation proves that electrospinning improves the homogeneity and Eb in composite films, and MS can limit the ferroelectric relaxation of PVDF and significantly increase Ue and η.

Phase-Field Simulation of Orowan Strengthening by Coherent Precipitate Plates in an Aluminum Alloy

2015 ◽  
Vol 46 (7) ◽  
pp. 3287-3301 ◽  
Author(s):  
Hong Liu ◽  
Yipeng Gao ◽  
Liang Qi ◽  
Yunzhi Wang ◽  
Jian-Feng Nie
Keyword(s):  
Aluminum Alloy ◽  
Phase Field ◽  
Phase Field Simulation ◽  
Field Simulation ◽  
Coherent Precipitate
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