新型塑性加工制备球形孔多孔金属及其性能  

New type of porous metal with spherical pore prepared by plastic working and properties

作　　者：施国栋[1] 何德坪[1] 何思渊[1] 丁龙[1] 

机构地区：[1]东南大学材料科学与工程学院,南京210096

出　　处：《材料研究学报》2009年第2期143-148,共6页Chinese Journal of Materials Research

基　　金：国家重点基础研究2006CB601201;国家自然科学基金50471031;50231010资助项目.~~

摘　　要：将铝板塑性加工成半球孔层金属结构薄层,以此为基本单元按一定方式连接形成球形孔多孔金属,研究了孔结构对球形孔多孔金属性能的影响.结果表明,平板层相连的球形孔结构,使其强度高于同样条件下堆积的空心金属球结构.这种新型球形孔多孔金属的强度较高,能够有效地吸收能量,铝板的厚度和孔隙率对其压缩和能量吸能性能有明显的影响.A novel method to prepare metallic structure with hemisphere layer formed by metal sheet plastic processing and connect it to novel porous metal in certain ways is proposed. The strength of structure composed of interconnected flat plate layers is greater than that of structure composed of accumulative metallic balls with air core in the same condition. This structure has high strength and can absorb energy, and the thickness and porosity of aluminum sheet have obvious effect on it＇s compressive property.

关 键 词：金属材料 冲压 多孔金属 孔隙率 压缩吸能 球形孔 

分 类 号：TG146[一般工业技术—材料科学与工程]