泡沫铝材料强韧化的研究.pdfVIP

泡沫铝材料强韧化的研究1 姚广春曹卓坤王永 (东北大学材料与冶金学院，辽宁沈阳110004) 摘要：提高装备性能需要高强度、高韧性、高吸能性的泡沫铝材料。本文论述了普通泡沫铝材料通过增大泡沫铝 材料密度达到具有较高强度，然而可压缩应变区间缩小，吸能性又减小。用强度较高的变形铝合金发泡可以提高 泡沫铝强度，但是幅度不大；对变形铝合金添加氧化物颗粒，制造氧化物颗粒增强的泡沫铝材料，可以提高泡沫 铝材料的强韧性：对变形铝合金添加镀铜短碳纤维。制造碳纤维增强的泡沫铝材料，提高泡沫铝材料的强韧性更 显著。氧化物颗粒和短碳纤维还可以提高气泡的稳定性，有利于制造90％以上的高孔隙率泡沫铝材料． 关键谒；泡沫铝材料；吸能性；颗粒增强；碳纤维增强 Studieson and ofAluminumFoamMaterials StrengtheningToughening YAO Cao zhuokun，Wangyong guangchun， ofMaterialsand (School Metallurgy,Northeastern Abstract：To and improveequipmentperformance，highstrength，hightoughnesshigh—energy ofaluminumfoammaterialwillbeneeded．Toincreasethe thecommonaluminum absorption intensity foammaterial were alsodecreaseddue by densitydiscussed，however，theenergyabsorption increasing toitsnarrowthe of strain．The ofaluminumfoamcanbeincreasedmadeof rangecompressiblestrength deformationaluminum not addaluminumoxide onthe strength alloy,butobviously．To particles higher aluminumfoamreinforcedoxide deformationaluminum the alloy,manufacturing by particle，the and ofthealuminumfoammaterialcanbe shortcarbon strengthtoughheSS improvedobviously．Adding coveredwith tothedeformation and ofaluminumfoammaterial fiber copper alloy,strengthtoughness reinforcedcarbon-fiberCanbe more andshortcarbonfibers by improvedsignificant