直流磁场作用下Al-13.3%Cu合金的熔点变化  

Melting Point Change of Al-13.3%Cu Alloy Under Stationary Magnetic Field

作　　者：班春燕[1] 巴启先[1] 崔建忠[1] 张北江[1] 

机构地区：[1]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110004

出　　处：《热加工工艺》2004年第2期7-8,共2页Hot Working Technology

基　　金：国家重大基础研究发展规划"973"资助项目(G199906490501)

摘　　要：采用双电桥法测定Al-13.3%Cu合金在直流磁场下凝固的电阻-温度曲线,通过对曲线的分析,确定了合金在磁场强度为0.06T和0.12T的直流磁场下凝固时的液相线温度和固相线温度,发现直流磁场对Al-13.3%Cu合金的熔点会产生一定的影响,合金的液相线和固相线温度下降,结晶间隔变大,并且当磁场强度为0.12T时这种变化更明显。The resistance-temperature curve of Al-13.3%Cu alloy solidified under a stationary magnetic field was measured through a way of double electric bridges,the liquidus and solidus temperature of the alloy under the stationary magnetic field were determined by the analysis of the curve when the intensity of the magnetic field was 0.06 T and (0.12) T.It is found that the stationary magnetic field can affect the melting point of Al-13.3%Cu alloy,the liquidus temperature and solidus temperature of alloy decrease and the crystal interval become big,moreover,the variety is more evident when the magnetic field is 0.12 T.

关 键 词：直流磁场 电阻 液相线 固相线 

分 类 号：TG113.1[金属学及工艺—物理冶金]