Study on Ultra-fine Microstructure of Cast Iron under Rapid Solidification

摘要

The ultra-fine microstructrue of cast iron has been studied under rapid solidification by laser rapid meltingand solidifying method and SEM and TEM technology and results show cementite, martensite, austenite and ultra-fineperlite phases can be obtained under rapid solidification and many dislocations have been the found in cementite.