摘要
采用有限差分法离散二维柱坐标系下不稳定热传导微分方程 ,利用Mathcad软件处理数据文件得到温度场分布图 ,模拟了二维柱坐标系下自硬砂型中金属离心凝固过程。对离心法制备Al 16
Dnon stationarythermalconductivitydifferentialequationissolvedbythefinitedifferencemethodincylindricalcoordinate ,thedatafilesarehandledbyMathcad 7 0 ,andthecurvesoftempera turevariationsareobtained .Itisthefirsttimethatthesolidificationofself hardeningsandcentrifugal castinghadbeensimulatedinthe 2 Dcylindricalcoordinate .FinallytheshrinkagecavityoninnersurfaceorinneroftheAl 16 %Sifunctiongradientmaterial (FGM)madebycentrifugalcastingisexamined ,anditsformingcausesareexplainedbysimulationofsolidificationcombinedwiththepressureinthecentrifu galacceleratefield .
出处
《铸造》
CAS
CSCD
北大核心
2000年第10期785-788,共4页
Foundry
基金
国家自然科学基金!资助项目 (59771 0 55)。
关键词
离心铸造
梯度功能材料
数值模拟
凝固
缩孔
centrifugal casting
functiongradient material
numerical simulation
solidification
shrink age cavity
