含稀土的复合变质剂对高铬铸铁冲击韧性的改善  

Influences of RE-Containing Composite Modifiers on Impact Toughness of Rich Chromium Cast Iron Castings

作　　者：刘超锋[1] 孙斌[2] 刘建秀[1] 

机构地区：[1]郑州轻工业学院,河南省表界面科学重点实验室,河南郑州450002 [2]中原工学院材料与化工学院,河南郑州450007

出　　处：《铸造》2009年第10期1021-1025,共5页Foundry

摘　　要：对高铬铸铁铁液选择合适的变质剂进行变质处理,可以增加高铬铸铁件的冲击韧性,延长高铬铸铁件的使用寿命,甚至降低高铬铸铁贵重合金元素的应用,降低生产成本。高铬铸铁件生产中可以使用的含稀土的复合变质剂包括轻稀土复合变质剂和含重稀土的复合变质剂。Impact toughness of rice chromium cast irons are improved and prices of rich-chromium cast iron castings are lowered owing to reducing expensive alloying elements to extended life and lower prices of rich-chromium cast iron castings by modification to molten iron of rich chromium cast iron castings with suitable modifiers. Available modifiers for rich-chrome cast iron can be light-RE-containing complex modifying agents and heavy-RE-containing complex modifying agents.

关 键 词：高铬铸铁 冲击韧性 轻稀土复合变质剂 含重稀土的复合变质剂 

分 类 号：TG143[一般工业技术—材料科学与工程]