【摘要】 研究了ＣｒＯ２低铬铸铁的铸态组织结构，结果指出，铸态组织为Ｆｅ３Ｃ、Ｃｒ７Ｃ３型共晶碳化物＋索氏体基体组成。热处理不改变碳化物类型，但适当热处理可获得较高的硬度。更多还原

【Abstract】 In this paper the structure of low chromium cast iron (CrO2) on cast condition has been researched The results show that the structure is composed of eutectic carbide Fe 3C,(Cr,Fe) 7C 3 and sorbite The type of carbide is not changed but high hardness can be acquired by heat treatment更多还原