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热历史对In-55wt%Sb亚共晶合金熔体粘度的影响
引用本文:程素娟,边秀房,张景祥,王忠华,隋学圃.热历史对In-55wt%Sb亚共晶合金熔体粘度的影响[J].稀有金属材料与工程,2006,35(7):1113-1116.
作者姓名:程素娟  边秀房  张景祥  王忠华  隋学圃
作者单位:1. 山东大学机械工程博士后科研流动站,山东,济南,250061;东营职业学院工业工程系,山东,东营,257091
2. 山东大学材料液态结构及其遗传性教育部重点实验室,山东,济南,250061
3. 山东大成热电有限公司,山东,淄博,255000
4. 东营职业学院工业工程系,山东,东营,257091
基金项目:国家自然科学基金;山东省自然科学基金
摘    要:利用回转振动粘度仪在液相线以上较大温度范围内,测量了In-55%Sb(质量分数)亚共晶合金熔体在不同的升降温过程中的粘度.实验结果表明,熔体经历的热历史对其粘度具有显著的影响.熔体在降温过程中的粘度高于升温过程中,在过热100℃后的降温过程中熔体的粘度较之无过热的降温过程中要低.在不同的热过程中,粘度发生转折变化的温度不同,在升温过程中,发生在850℃左右,在过热100℃和无过热的降温过程中,分别发生在750℃和650℃左右.熔体粘度的突变反映了熔体结构在相应温度的突然变化.

关 键 词:熔体  粘度  液态结构  热历史
文章编号:1002-185X(2006)07-1113-04
收稿时间:2005-05-19
修稿时间:2005年5月19日

Effect of Thermal History on Viscosity of In-55wt%Sb Hypoeutectic Alloy Melt
Cheng Sujuan,Bian Xiufang,Zhang Jingxiang,Wang Zhonghu,Sui Xuepu.Effect of Thermal History on Viscosity of In-55wt%Sb Hypoeutectic Alloy Melt[J].Rare Metal Materials and Engineering,2006,35(7):1113-1116.
Authors:Cheng Sujuan  Bian Xiufang  Zhang Jingxiang  Wang Zhonghu  Sui Xuepu
Affiliation:1. Mechanical Engineering School of Shandong University, Jinan 250061, China;2. Industry Engineering Department, Dongying Vocationnl College, Dongying 257091, China;3. Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, China; 4. Shandong Dacheng Thermoelectricity Co. Ltd., Zibo 255000, China
Abstract:The dynamic viscosity of In-55wt%Sb hypoeutectic alloy melt was measured in a wide temperature range above liquidus in heating and cooling processes by using a torsional oscillation viscometer. The experimental results show that thermal histories have considerable effect on the viscosity. Viscosities of the alloy in cooling are greater than those in heating.Viscosities in cooling with 100℃ superheating are lower than those in cooling without superheating. The temperature of viscosity transition is different in different thermal processes. The viscosity transition occurs at about 850℃ in heating process, at about 650℃ in cooling without superheating and at about 750℃ in cooling with 100℃ superheating, respectively,which reflects the sudden change of structure in the alloy at corresponding temperature.
Keywords:melt  viscosity  liquid structure  thermal history
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