摘要
利用固液混合铸造制备了Cr15高铬铸铁,并利用光镜和扫描电镜对合金的微观组织进行了研究。结果表明,与普通铸造相比,固液混合铸造制备的Cr15高铬铸铁共晶碳化物被细化、球化,奥氏体为细小的等轴晶,共晶团尺寸显著减小,粒度为20￣50μm。
15%Cr （mass） high chromium cast iron was fabricated by the solid-liquid mixed casting technology, whose microstructures were studied by OM and SEM. The results show that the eutectic carbides in 15%Cr（mass） high chromium cast iron prepared by solid-liquid mixed casting are refined and they transform into spherical morphology, the austenites are fine equiaxial grains and the eutectic colonies are about 20-50μm, much finer than that of conventional casting.
出处
《铸造》
CAS
CSCD
北大核心
2006年第4期341-344,共4页
Foundry
基金
国家自然科学基金资助项目(50274037)
关键词
铸造
固液混合铸造
半固态铸造
高铬铸铁
casting
solid-liquid mixed casting
semi-solid casting
high chromium cast iron
