Effect of Brownian Coagulation on the Liquid-liquid Decomposition in Gas-atomized Alloy Drops

材料科学技术（英文）, 2006, 22(3): 321-323.

^1, , ^2, , ^3, , ^4,

1.Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China

2.Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China

3.Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China

4.The Institute for Space Simulation, DLR, 51140 Cologne, Germany

基金项目: International Cooperation Key Project of NNSF of China(50395104,5027107,50371092) 中国科学院资助项目 Natural Science Foundation of Liaoning Province(20050047)

Effect of Brownian Coagulation on the Liquid-liquid Decomposition in Gas-atomized Alloy Drops

Keywords： Immiscible alloy

Modeling and simulation have been carried out for Al-Pb alloys to investigate the Brownian coagulation effect on the microstructure development in a gas-atomized drop during the liquid-liquid decomposition.The results indicate that Brownian coagulation has a weak effect on the nucleation and a relatively strong effect on coarsening the minority phase droplets. The influence of Brownian coagulation on the liquid-liquid decomposition decreases with the increase in the diameter (or the decrease in the cooling rate) of the atomized drop.

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Effect of Brownian Coagulation on the Liquid-liquid Decomposition in Gas-atomized Alloy Drops

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