V-EPC法制备SiC颗粒增强铸铁基表面复合材料  

Preparation of SiC Particle Reinforced Iron-based Surface Composite Material by V-EPC Infiltration

作　　者：金汉[1] 吕振林[1] 周永欣[1] 邢志国[2] 

机构地区：[1]西安理工大学材料科学与工程学院,陕西西安710048 [2]装甲兵工程学院装备再制造工程系,北京100072

出　　处：《铸造技术》2011年第3期325-327,共3页Foundry Technology

基　　金：教育厅科学研究计划项目资助(09JK639)

摘　　要：以HT150为基体,采用消失模铸渗工艺(V-EPC)制备出了不同粒径尺寸的SiC颗粒增强铸铁基表面复合材料。结果表明,SiC粒子尺寸为560μm时,制备的铸铁基复合材料表面复合良好,且表面平整,SiC粒子分布均匀,复合层厚度为3 mm左右。随着SiC粒子尺寸的减小,SiC粒子的铸渗效果明显变差,到180μm时,已无法得到复合层。The iron-based surface composite reinforced by different size SiC particles were prepared by vacuum evaporative pattern casting（V-EPC）.The results show that when SiC particle size is 560 μm,the iron-based surface composite reinforced by SiC particles has better surface composites quality,and the composite surface is flat.The composite layer thickness is about 3 mm.With the decrease of SiC particle size,the effect of infiltration is getting worse gradually,and when the SiC particle size is 180 μm,the composite layer on iron surface can not be prepared.

关 键 词：铸渗 铸铁 复合材料 碳化硅粒子 

分 类 号：TG249.5[机械工程—精密仪器及机械]