MODELING OF DIRECT CHILL CASTING OF SUPERLIGHT Mg-Li ALLOYS
A mathematical model of the direct chill (DC) casting process for superlight Mg-Li alloy (LA141) slab has been developed using the finite differential method (FDM). Thermal boundary conditions, including primary and secondary cooling conditions, have been selected based on knowledge of the physical process and the literature. The variations of heat transfer coefficient between slab and dummy block interface resulting from the deformation of the slab have been considered. By calculating the temperature distribution, solid-liquid interface shape and position, the influence of casting parameters on DC casting process, such as the pour temperature, cooling water flow rate, casting speed have been analyzed. Moreover the solidification profiles and sump depth of LA141 and AZ31 are compared.
Superlight alloys temperature field simulation
Shuyan SHI Hai HAO Xingguo ZHANG Peng GUO Junze JIN
School of Materials Science and Engineering, Dailian University of Technology, Dalian 116024, China
国际会议
大连
英文
105-111
2007-08-19（万方平台首次上网日期，不代表论文的发表时间）