摘要
以空气雾化的AlSi 12合金粉和TiH2粉末为原料,采用粉末包套轧制法成功制备出泡沫铝夹层板.通过对包套轧制进行了理论分析,结合SAYN-CG90数码相机、扫描电镜(SEM)和显微硬度仪等检测方法,系统研究了不同压下率对制备预制体的致密度和界面结合,以及泡沫铝夹层板泡孔结构的影响.结果表明:当压下率为70%的时候,可以获得表面平直、完整,粉体均匀、致密的预制坯,并且实现面板与芯层的有效结合,最终获得泡孔结构完整和均匀的泡沫铝三明治板.
Aluminum foam sandwiches were successfully prepared by the pack-rolling method with commercial AlSi12 alloy and TiH2 powders as raw materials.The effects of reduction rates on macro-morphology of the precursors,interfacial bonding and the foam structure were systematically investigated by the theoretical analysis of pack-rolling and testing by using a SAYN-CG90 digital camera,scanning electronic microscopy（SEM） and micro hardness tester.The results show that when the reduction rate was 70%,the foamable sandwich with complete and uniform density of perform may be obtained and the effective bonding between the panel and core could be realized;ultimately complete and uniform pore structure of aluminum foam sandwich panels could be attained.
出处
《材料与冶金学报》
CAS
2011年第3期198-202,共5页
Journal of Materials and Metallurgy
基金
国家自然科学基金资助项目(编号:50704012)
沈阳市科技计划资助项目(F10-205-1-59)
关键词
包套轧制
发泡预制坯
致密度
压下率
界面
pack-rolling
foamable sandwich
density
reduction rate
interface
