The failure reason of grey iron chill has been studied by means of high magnification metalloscope and EPMA The oxidation mechanism under the codition in this research has been put forward.

• 本文采用金相显微分析、电子探针微区成分分析等手段对铸铁材质冷铁的失效原因进行了研究，并在此基础上提出了本试验条件下铸铁氧化过程的机理。