摘要
为寻找一种原材料来源较广、成本较低的无磁球墨铸铁材料，采取合金优化、球化处理、硅铁和铝联合孕育以及热处理技术，对Mn系无磁球墨铸铁进行了研制。结果表明，恰当的Si／in（0．5～0．6）和铜（1．5％～3％）配合、硅铁和铝联合孕育处理，可在铸态下获得性能优良的无磁球墨铸铁；热处理可以进一步改善Mn系无磁球墨铸铁的磁导率、力学性能和机械加工性能。
To search a non-magnetic nodular cast iron material with the raw material of extensive sources and low cost, the non-magnetic nodular cast iron which belongs to manganese base series was developed by alloy optimization, spheroidizing, joint inoculation of ferrosilicon and alurninium and heat treatment. The results indicate that non-magnetic nodular cast iron with good performance can be obtained in the state of as-cast by combining Si/Mn （0.5-0.6） with copper （1.5%-3%） appropriately and inoculating ferrosilicon and aluminium together. Furthermore, the permeability, mechanical properties and machinability of the non-magnetic nodular cast iron which belongs to manganese base series are improved by heat treatment.
出处
《热加工工艺》
CSCD
北大核心
2014年第5期53-55,59,共4页
Hot Working Technology
基金
山东省科技发展计划项目(2011GSF11611)
山东大学科技发展计划项目(201102051)
关键词
无磁球墨铸铁
奥氏体
渗碳体
磁导率
nonmagnetic nodular cast iron
austenite
cementite
magneto-conductivity
