摘要
研究了Si对高碳钢盘条珠光体相变及钢丝热稳定性的影响。研究表明,Si含量的增加可以明显地提高珠光体相变温度,且在高碳钢中增加相同含量的Si,不同相变温度下盘条硬度的增加值基本保持不变;三维原子探针分析结果表明,在高碳钢中添加一定量的Si可以减小盘条铁素体片层中C原子的偏聚程度,有利于提高C原子分布的均匀性;同时Si可以明显地提高渗碳体片层的球化温度,有利于钢丝热稳定性的提高。
The influence of silicon addition on the pearlite transformation and thermal stability of high carbon steel wires was investigated.It shows that the adding of silicon can be helpful to increase the pearlite transformation temperature and the increments of Vickers hardness of the wire rods,which transformed at different temperature are almost the same.The results of three dimensional atom probe analysis show the adding of silicon could decrease the segregation of carbon atom as to improve its homogeneity in the ferrite lamella.At the same time,the thermal stability is improved for the adding of silicon,which increases the spheroidizing temperature of cementite obviously.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
2014年第6期54-56,共3页
Journal of Iron and Steel Research
关键词
Si合金化
热稳定性
偏聚
珠光体相变
silicon alloying
thermal stability
segregation
pearlite transformation
