摘要
从柱形界面稳定性出发,考察近端部界面失稳的充分条件,并将其失稳与枝晶向细胞晶转变相对应,从而建立了亚快速凝固过程中枝晶、细胞晶转变的判据该判据所得Al-Mn合金枝→胞转变临界值与实验结果吻合。关键词##4亚快速凝固;;枝晶→细胞晶转变;;
From the stability of the cylindrical interface, a criterion of the transition from dendrite to fine cell in sub-rapid solidification has been constructed. The calculated results agree well with the experimental results for Al-Mn alloy.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第7期673-676,共4页
Acta Metallurgica Sinica
基金
国家自然科学基金
关键词
亚快速凝固
枝晶
细胞晶
转变
柱形界面
稳定性
sub-rapid solidification, transition from dendrite to fine cell, stability of cylindrical interface