Physical simulation of homogeneous Zn-Bi rnonotectic alloy prepared by electric-magnet compound field

被引：6

作者：

Wang Jiang ^{[1
]}

Zhong Yun-Bo ^{[1
]}

Wang Chao ^{[1
]}

Wang Zhi-Qiang ^{[1
]}

Ren Zhong-Ming ^{[1
]}

Xu Kuang-Di ^{[1
]}

机构：

[1] Shanghai Univ, Shanghai Key Lab Modern Met & Mat Proc, Shanghai 200072, Peoples R China

来源：

ACTA PHYSICA SINICA | 2011年 / 60卷 / 07期

基金：

中国国家自然科学基金;

关键词：

electric-magnet compound field; monotectic alloy; physical simulation; CU-PB; AL-PB; MONOTECTIC ALLOYS; SOLIDIFICATION; MICROGRAVITY;

D O I：

10.7498/aps.60.076101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Through physical simulation, we study the influence mechanism of electromagnetic field on the solidification structure of homogeneous Zn-Bi monotectic alloy, the transformation rule of the diameter of molten secondary phase under the compound field, and the process of the shattering of the layered structure into matrix by the Lorentz force. The results show that the diameter of the secondary drop decreases with AC current density and magnetic field increasing. The influence of AC frequency has an optimal value from which the deviation can weaken the suppression of diameter, which accords with the experimental result. The layered metal liquid can be uniformly mixed under the action of electromagnetio field. The above effects can effectively release segregation of the second phase of monotectic alloy. The simulation results show the main factors of preparing the homogeneous monotectic alloy in an electromagnetic field intuitively.

引用

页数：9

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