摘要
采用激光快速熔凝和深腐蚀技术,对快速凝固过程中铸铁的共晶生长进行了研究。结果发现,在快速凝固条件下,共晶莱氏体除按普通条件下的蜂窝伏和层片状生长外,还存在一种新的共晶生长方式,即蘑菇状共晶生长,最终形成带有大量分枝的层片分枝结构。
The eutectic growth of cast iron during rapid solidification has been studied with laser remelting and deep etching. A new mode of the mushroom eutectic growth was revealed other than the usual honeycomb and lammellar ones. The mushroom eutectic growth may finally form the lamellar dendrite structure.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第6期A450-A453,共4页
Acta Metallurgica Sinica
关键词
铸铁
凝固
共晶
生长
高熔点
cast iron
eutectic growth
rapid solidification
