普通灰铸铁铸造余热等温淬火的组织与性能  

The Structure and Properties of the Gray Iron After Isothermal Quenching by Using Residual Cast Caloric

作　　者：尹志新[1] 张伟[1] 汪振华[1] 樊新波[1] 金长义[2] 

机构地区：[1]广西大学,南宁市530004 [2]广西工业职业技术学院,南宁市530004

出　　处：《中国铸造装备与技术》2008年第4期24-26,共3页China Foundry Machinery & Technology

摘　　要：探讨了普通灰铸铁利用铸造余热直接进行等温淬火后的组织与性能,结果表明:普通灰铸铁不需要再额外添加合金元素,通过铸造预热等温淬火,就可以使灰铸铁基体获得下贝氏体组织,从而使灰铸铁的硬度和抗拉强度均有一定幅度提高。The structures and properties of the gray iron have been studied which had been isothermal quenched by using residual cast caloric. The results showed that the lower bainite can be obtained in the gray iron microstructures, and so the hardness and tensile strength of the gray iron are both increased.

关 键 词：灰铸铁 等温淬火 显微组织 力学性能 

分 类 号：TG457.12[金属学及工艺—焊接]