图书来源:二元合金相图及中间相晶体结构 二元合金相图及中间相晶体结构
作 者:唐仁政 田荣璋
出版时间:2009-05
定 价:320元
图书ISBN:978-7-81105-831-4
出版单位:中南大学出版社
Zhen-duo Zhao,Wei-min Mao,Sha Li,and Rong-mao Zhong School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China
摘 要:The semisolid AlSi7Mg alloy slurry with large capacity was prepared by low superheat pouring and week traveling-wave electromagnetic stirring.The effects of electromagnetic stirring power and frequency on the shape and distribution of primary α-Al grains in the AlSi7Mg alloy slurry were discussed.The experimental results show that the AlSi7Mg alloy slurry with fine and spherical primary α-Al grains distributed homogeneously can be obtained.Under the condition of low superheat pouring and week traveling-wave electromagnetic stirring,when the pouring temperature is 630°C,raising the stirring power or frequency appropriately can gain a better shape of primary α-Al grains;but if the stirring power or frequency is increased to a certain value(1.72 kW or10 Hz),the shape of primary α-Al grains cannot be obviously improved and spherical primary α-Al grains distributed homogeneously can be still obtained.
关键词: