TY - JOUR
T1 - Research on the non-linear temperature field of molten metal shaped by an electromagnetic field in DS processing
AU - Li, Jinshan
AU - Hao, Qitang
AU - Li, Shuangming
AU - Kou, Hongchao
AU - Li, Jianguo
AU - Fu, Hengzhi
PY - 2003/6/30
Y1 - 2003/6/30
N2 - A new directional solidification (DS) technique, combining electromagnetic shaping with liquid metal cooling, is established to confine and shape liquid metal by an electromagnetic field without the mold and carry out DS with a high-temperature gradient. The motion of the sample, heat radiation, and especially the material-property difference between the solid and the liquid, are considered for electromagnetic heating. Thereafter, a non-linear temperature model is established to calculate the position of the solid/liquid interface with respect to the furnace, the height of liquid metal and the temperature distribution in stainless-steel samples. The results of calculation are in good agreement with experimental measurements. On the basis of the model, experimental parameters, such as the intensity of cooling, and the current in the induction coils, can be further optimized so as to control the morphology of the solid/liquid interface, the temperature gradient and the axial temperature distribution in the liquid metal. A FEM approach is developed in this paper.
AB - A new directional solidification (DS) technique, combining electromagnetic shaping with liquid metal cooling, is established to confine and shape liquid metal by an electromagnetic field without the mold and carry out DS with a high-temperature gradient. The motion of the sample, heat radiation, and especially the material-property difference between the solid and the liquid, are considered for electromagnetic heating. Thereafter, a non-linear temperature model is established to calculate the position of the solid/liquid interface with respect to the furnace, the height of liquid metal and the temperature distribution in stainless-steel samples. The results of calculation are in good agreement with experimental measurements. On the basis of the model, experimental parameters, such as the intensity of cooling, and the current in the induction coils, can be further optimized so as to control the morphology of the solid/liquid interface, the temperature gradient and the axial temperature distribution in the liquid metal. A FEM approach is developed in this paper.
KW - Directional solidification
KW - Electromagnetic shaping
KW - Temperature field
UR - http://www.scopus.com/inward/record.url?scp=0037473665&partnerID=8YFLogxK
U2 - 10.1016/S0924-0136(02)01079-8
DO - 10.1016/S0924-0136(02)01079-8
M3 - 文章
AN - SCOPUS:0037473665
SN - 0924-0136
VL - 137
SP - 145
EP - 150
JO - Journal of Materials Processing Technology
JF - Journal of Materials Processing Technology
IS - 1-3 SPEC
ER -