Gravity-induced Solidification Segregation and Its Effect On Dendrite Growth in Al-2.8 Wt.% Cu Alloy

2021 ◽  
Vol 33 (6) ◽  
Author(s):  
Yafei Kong ◽  
Xinghong Luo ◽  
Yang Li ◽  
Shi Liu
Keyword(s):  
Dendrite Growth ◽  
Cu Alloy

Phase-Field Micro-Solidification Simulation for Dendrite Growth in Ni-Cu Binary Alloy

2013 ◽  
Vol 830 ◽  
pp. 3-7
Author(s):  
Wei Zhou Hou ◽  
Hong Kui Mao
Keyword(s):  
Phase Field ◽  
Growth Parameters ◽  
Field Method ◽  
Isothermal Solidification ◽  
Dendrite Growth ◽  
Phase Field Method ◽  
Solidification Condition ◽  
Solidification Simulation ◽  
Cu Alloy ◽  
Undercooled Melt

By optimizing the relevant dendrite growth parameters of Ni-Cu alloy undercooling melt, it has studied the effect that the dendrite evolution process of undercooled melt and the degree of undercooling melt have on the dendrite growth of undercooling melt. In the isothermal and non-isothermal solidification condition, relatively accurate result is obtained by applying the phase field method to simulate Ni-Cu alloy. Simulation results show non-isothermal simulation with Neuman boundary condition suit to the actual physical process better.

Numerical Simulation of Dendrite Growth and Micro Segregation of Ni-Cu Alloy

2019 ◽  
Vol 944 ◽  
pp. 155-162
Author(s):  
Ming Guang Wang ◽  
Shan Jiang
Keyword(s):  
Microscopic Theory ◽  
Field Method ◽  
Solute Segregation ◽  
Dendrite Growth ◽  
Lateral Branch ◽  
Phase Field Method ◽  
Saturation Degree ◽  
Cu Alloy ◽  
The Impact ◽  
Good Agreement

Dendrite growth of Ni-0.4083%Cu alloy was simulated by the phase-field method in the paper. The impact of super-cooling degree and super-saturation degree and solute segregation on dendrite growth was studied systematically. solute segregation increased initially then tended to decrease. The increase of super-saturation can promote the growth of lateral branch and destroy the constancy of the dendrite tip at the same time. The simulation result was compared with the microscopic theory and they have a good agreement.

scholarly journals Dendrite Growth of Continuous Alumina Fiber Reinforced Al-Cu Alloy Composites

1999 ◽  
Vol 63 (10) ◽  
pp. 1304-1310 ◽  
Author(s):  
Masayuki Mizumoto ◽  
Takeshi Hanaoka ◽  
Hirofumi Miyahara ◽  
Keisaku Ogi
Keyword(s):  
Dendrite Growth ◽  
Alumina Fiber ◽  
Fiber Reinforced ◽  
Cu Alloy

Phase Field Simulation of Solidified Multiple Grains

2012 ◽  
Vol 602-604 ◽  
pp. 1874-1877
Author(s):  
Hong Min Guo ◽  
Tao Wei ◽  
Xiang Jie Yang
Keyword(s):  
Latent Heat ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Dendrite Growth ◽  
Competitive Growth ◽  
Equiaxed Dendrite ◽  
Isothermal Conditions ◽  
Cu Alloy ◽  
Field Simulation

A phase-field model based on the Ginzburg-Landan theory and KKS model is used to simulate the dendrite growth of multiple grains for Al-Cu alloy. The influence of solidification latent heat and undercooling on the growth of equiaxed dendrite, solute distribution and temperature distribution were studied. The results show that the dendrite has well-developed and the competitive growth between grains more intense with the increasing of undercooling. The release of solidification latent heat restrain dendrite growth to a certain extent, which led to the less developed growth of dendrite solidified in non-isothermal conditions than that in isothermal conditions.

scholarly journals Primary Dendrite Growth of Al–Cu Alloy Films between Solid Plates

1999 ◽  
Vol 40 (3) ◽  
pp. 248-253 ◽  
Author(s):  
Masayuki Mizumoto ◽  
Nobuyuki Mori ◽  
Keisaku Ogi
Keyword(s):  
Primary Dendrite ◽  
Dendrite Growth ◽  
Alloy Films ◽  
Cu Alloy

Numerical Simulation of Ni-Cu Alloy Dendrite Growth with Boundary Heat Flux

2020 ◽  
Vol 993 ◽  
pp. 976-983
Author(s):  
Ming Guang Wang ◽  
Shan Jiang
Keyword(s):  
Numerical Simulation ◽  
Boundary Condition ◽  
Neumann Boundary Condition ◽  
Neumann Boundary ◽  
Dendrite Growth ◽  
Temperature Fields ◽  
Dendrite Morphology ◽  
Cu Alloy ◽  
Solid Liquid Interface ◽  
Solid Liquid

Evolution of the dendrite growth and the distribution of concentration and temperature fields in a Ni-0.4083 at.% Cu alloy was simulated. The dendrite morphology was greatly affected by boundary conditions. The result shows that the solid/liquid interface of dendrite was most instable and grew most fast under extraction boundary condition. The re-calescence occurred under the extraction boundary condition and Zero-Neumann boundary condition, but not under the heating boundary condition.

In situ study on columnar-equiaxed transition and anaxial columnar dendrite growth of Al-15%Cu alloy by synchrotron radiography

2014 ◽  
Vol 24 (7) ◽  
pp. 2112-2116 ◽  
Author(s):  
Fa-guo LI ◽  
Qing DONG ◽  
Jiao ZHANG ◽  
Yong-bing DAI ◽  
Ya-nan FU ◽  
...  
Keyword(s):  
Dendrite Growth ◽  
Columnar Dendrite ◽  
In Situ Study ◽  
Cu Alloy ◽  
Synchrotron Radiography
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