【摘要】 介绍了Fe-Cu、Fe-C-Cu相图的特征点温度和成分；阐述了Cu对铸铁共晶组织的影响及反铁素体化和强化铸铁基体的规律。指出：在共晶转变时，铜促进石墨化，消除游离渗碳体，促进铸铁按稳定系呈灰口凝固；在铸铁中，由于有硅和碳的存在，铜对铸铁的固溶强化作用较为显著。认为铜可使铸铁的抗拉强度和硬度提高等。更多还原

【Abstract】 The characteristic point temperature and composition of fe-Cu and Fe-C-Cu phase diagrams are introduced. The effect of Cu on the eutectic structure of cast iron, anti-ferritization and strengthening of cast iron matrix are described. It is pointed out that during eutectic transition, copper promotes graphitization, eliminates free cementite, and promotes the solidification of cast iron in a stable system. It is also pointed out that in cast iron, due to the presence of silicon and carbon, copper has a significant solution strengthening effect on cast iron. It is considered that copper can increase tensile strength and hardness of cast iron.更多还原