制动鼓用加锡蠕墨铸铁抗热疲劳性能的研究  

Study on Thermal Fatigue Resistance of Vermicular Graphite Cast Iron with Different Sn Addition

作　　者：陈丹[1] 陈海军[1] 赵永涛[1] 李国栋[1] 

机构地区：[1]河南工程学院机械工程学院,河南郑州451191

出　　处：《铸造技术》2016年第12期2670-2672,2680,共4页Foundry Technology

基　　金：河南工程学院博士基金(D2012010)

摘　　要：通过在铸铁中添加不同含量的Sn,分析Sn含量变化对铸铁在600~20℃交变温度下抗热疲劳性能的影响规律。结果表明,当Sn的添加量为0.06%时,在270℃等温淬火0.5 h后,铸铁的基体组织为奥铁体,具有最佳的抗热疲劳性能。The Sn element of different contents was added into verrnicular graphite iron, and the thermal fatigue property of the cast iron was tested at the alternative temperature of 600-20 ℃. The results show that when adding 0.06% Sn into the cast iron, after isothermal quenching at 270 ℃ for 0.5 h, the matrix structure of the cast iron consists of austenite, and the cast iron has the best thermal fatigue resistance.

关 键 词：蠕墨铸铁 SN 热疲劳 奥氏体 

分 类 号：TG143.49[一般工业技术—材料科学与工程]