液面振荡条件下频率对Al-Si合金凝固组织的影响及其模拟实验  

Effect of Frequency on Solidification Structure of Al-Si Alloy and Its Experimental Simulation Under Liquid Surface Oscillation

作　　者：李军文[1] 王雪[1,2] 

机构地区：[1]辽宁工业大学材料与化学工程学院,辽宁锦州121001 [2]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《热加工工艺》2009年第15期18-22,共5页Hot Working Technology

基　　金：教育部留学回国人员科研启动基金资助项目(2007-1067);辽宁省教育厅创新团队项目(20081224);辽宁省自然科学基金资助项目(20082177);辽宁工业大学材料物理与化学重点学科研究基金资助项目(LG200705)

摘　　要：以NH4Cl溶液和Al-Si合金为研究对象,探讨了液面振荡条件下频率对等轴晶形成的影响。结果表明:随着振荡频率的增加,液面振荡使NH4Cl溶液结晶时间和白浊化时间均缩短;对于Al-Si合金,液面振荡促进等轴晶的形成。Taking ammonium chloride solution and Al-Si alloy as study objects, the effect of frequency on solidification structure of Al-Si alloy was discussed under liquid surface oscillation. The results show that the crystallization time and the cloudiness time of ammonium chloride solution decrease with the increase of the oscillation frequency; the equiaxed grains of Al-Si alloy ingots increase with the increase of the oscillation frequency.

关 键 词：液面振荡 振荡频率 AL-SI合金 铸锭 等轴晶 

分 类 号：TG244.3[金属学及工艺—铸造]