非正常组织对铸钢性能的影响

Effect of Abnormal Microstructure on Properties of Cast Steel

摘要: 本文以正火态ZGD410-700牌号为例，做出合格金相F + P及不同级别的铸态残留非正常组织，分别进行性能、金相、硬度及冲击性能测试，结果表明：非正常组织对抗拉、延伸率无影响；硬度略高于合格F + P；明显降低材料的冲击性能。

Abstract: This paper takes ZGD410-700 as an example. Qualified F + P microstructure and different levels of remaining casting abnormal structure are made following with property, microstructure, hardness and impact property testing. The result shows that: abnormal structure has no effect on strength of extension and elongation, also has higher hardness and lower impact property than qualified structure.