【摘要】 研究了不同Ａｌ含量的Ａｌ－Ｓｉ合金铸铁在热浸锌过程中的腐蚀速率、界面组织结构和成分变化。结果表明，随着合金铸铁中Ａｌ和Ｓｉ含量升高腐蚀速率降低，当Ａｌ－Ｓｉ总量为１０（ｗｔ）％时，腐蚀速率小于普通灰铁的１０％。Ａｌ－Ｓｉ合金铸铁锌液腐蚀的原因：（１）表层形成较稳定的Ｆｅ３Ａｌ、ＦｅＡｌ或Ｆｅ３Ｓｉ、Ｆｅ５Ｓｉ３相；（２）界面层中形成较厚的合金相层；二者均使铸铁与锌液反应扩散速率降低。另外，石墨与基体的边界为Ｚｎ原子的侵入提供了通道，温度越高浸蚀越重。在同样的化学成分条件下，球状或蠕状石墨铸铁优于片状石墨铸铁的抗蚀性。更多还原

【Abstract】 Abstract The corrosion rate, interfacial structure and composition variations of hot dipped Al Si cast iron with different Al content were investigated. The effects of composition and structure on corrosion resistance of the materials were discussed. Cause of Corrosion Leak of PVC Synthesizing Converter and Its Countermeasures更多还原