Cu-Cr材料是两相复合材料,铬粒子通常以嵌入在铜基体中的形式存在,凝固过程中存在着严重的偏析现象,进而对凝固温度场的分布产生影响.为分析Cr相偏析对温度场分布的影响,基于Eulerian-Eulerian方法,建立了三维凝固偏析模型,利用Fluent模拟计算,偏析模型采用浓度梯度▽SCr和分布面积梯度▽SCr来表示,得到了Cu-6.5%Cr的凝固偏析分布和温度场分布.结果表明:由于Cr的熔点比较高,当t
There is a serious segregation phenomenon during solidification process because Cu-Cr material is a two-phase composite material and Cr usually emended in the copper. So the solidification temperature field distribution was effected seriously by segregation phenomenon. In order to analyze the effect of Cr phase segregation on the distribution of temperature field, a 3D segregation solidification model which adopted concentration gradient and distribution area gradient▽SCr was built based on Eulerian-Eulerian and calculated by Fluent. The Cu-6.5%Cr segregation and the temperature field distribution were gained. The result shows that Cr frozen laterally at t
参考文献
- 下载量()
- 访问量()
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%