半固态废弃铝硅合金的稳态流变性能的研究  

Rheological Behavior of Recycled Semi-Solid Al-Si Alloy at Steady State

作　　者：姚瑰妮 孙可伟[1] 

机构地区：[1]昆明理工大学固体废弃物资源化国家工程中心,云南昆明650093 [2]云南大学化学科学与工程学院,云南昆明650051

出　　处：《铸造》2012年第2期195-197,202,共4页Foundry

基　　金：国家自然科学基金资助项目(50774039)

摘　　要：利用同轴双筒流变仪研究了以废旧铝料为原料的半固态铝硅合金浆料的稳态流变性能。结果表明,半固态铝硅合金浆料的稳态表观黏度随固相分数的增加而增加,但随剪切速率的增大而减小,并得出稳态表观黏度的公式来描述固相率、剪切速率对稳态表观黏度的影响。The steady state rheological behavior of recycled AI-Si alloy semi-solid slurry has been studied by means of a Couette-type viscometer. The results show that the apparent viscosity of semi-solid Al-Si alloy increases with the increase of solid fraction, but decreases with the increase of steady-state shearing rate. An empirical equation showing the effect of solid fraction and sheafing rate on the apparent viscosity at steady state was obtained.

关 键 词：稳态表观黏度 废弃铝硅合金 固相率 剪切速率 

分 类 号：TG292[金属学及工艺—铸造]