Commercial AM60 alloy for semisolid processing:Effects of continuous rheoconversion process on microstructure
In order to verify the effect of CRP (continuous rheoeonversion process) in the preparation of magnesium alloy semisolid billets, AM60 alloy billets were fabricated with CRP, and effects of pouring temperature, slope angle, and length of the reactor on the microstrueture of AM60 alloy were investigated. The results show that the grain size is reduced with the decrease of pouring temperature. A small block/rosette grain is obtained when the pouring temperature is less than 680℃. Therefore, the available temperature process interval/window has to be required. To change slope angle of reactor (from 30°to 45°) is helpful for formation of the small and block/rosette grains. Meanwhile, the reactor with a length of 500 mm is enough for copious nucleation of primary phase. CRP changes the solidification microstructure of billets by controlling the nucleation and growth of the primary phase in melt.
CRP semi-solid processing AM60 alloy nucleation growth
XING Bo LI Yuan-dong MA Ying HAO Yuan D.APELIAN
State Key Laboratory of Gansu Advanced Nonferrous Metal Materials,Lanzhou University of Technology, State Key Laboratory of Gansu Advanced Nonferrous Metal Materials,Lanzhou University of Technology, Advanced Casting Research Center, Metal Processing Institute, WPI, Worcester, MA 01609, USA
国际会议
北京
英文
723-728
2010-09-16（万方平台首次上网日期，不代表论文的发表时间）