INITIATION MECHANISM OF THERMAL CRACK DURING SOLIDIFICATION OF EMC SLAB
ZHENG Hianshu;JIN Junze(Dalian Uiniversity of Technology;Dalian 116023)(Manuscript received 1995-03-15)
Cite this article:
ZHENG Hianshu;JIN Junze(Dalian Uiniversity of Technology;Dalian 116023)(Manuscript received 1995-03-15). INITIATION MECHANISM OF THERMAL CRACK DURING SOLIDIFICATION OF EMC SLAB. Acta Metall Sin, 1995, 31(23): 511-517.
Abstract Based on the numerical simulation of solidification of EMC(electromagnetic casting) slab,a formula estimating the thermal stress and the location where the thermal crack initiates are proposed.The result indicates that the temperature on the surface of slab is a key factor to predict thermal stress and crack.By means of some technology,if the cooling rate on the surface of EMC slab is controlled so that the temperature in the solidified shell remains higher,the thermal crack may be avoided.
DONG Renze China Academy of Railway Sciences; Beijing associate professor;Department of Science and Technology Development;China Academy of Railway Sciences; Beijing 100081. THERMAL CRACK AND WEAR OF TRAIN VEHICLE WHEEL[J]. 金属学报, 1990, 26(1): 58-63.