铸铁-硬质合金复合铸造的机理  

The Connection Mechanism of Cast Iron Cemented Carbide by Composite Casting

作　　者：张恒大[1] 刘子安[2] 

机构地区：[1]北京科技大学,北京100083 [2]沈阳铸造研究所,辽宁沈阳110021

出　　处：《铸造》2000年第6期334-335,共2页Foundry

摘　　要：介绍了铸铁—硬质合金的复合铸造试验。通过对过渡区的形貌结构和成分分析探讨了铸铁—硬质合金的复合机制。发现在复合过程中 ,由于界面作用和扩散反应及新相的产生 。The composite cast experiment of the cemented carbide cast iron had been presented in this paper.The connection mechanism of cast iron cemented carbide was studied by analyzing the morphology of microstructure and the constitutive elements in the transition zone.It was showed that The metallurgical connection was formed because of the diffusion reaction,interface reaction and formation of the new compounds during the composite casting.

关 键 词：复合铸造 铸铁 硬质合金 过渡层 扩散 冶金结合 

分 类 号：TG249[金属学及工艺—铸造]