(1. 东南大学 材料科学与工程学院，南京2100962. 西安交通大学 航天航空学院，西安 710049)
摘 要: 研究闭孔泡沫铝的孔结构、基体对耐蚀性能的影响，探讨提高耐腐蚀性能的途径。结果表明：其耐蚀性远低于实体金属，在孔径相近情况下，随孔隙率的增大，表面积增大，使耐腐蚀性能下降； Al-Mg-Re基防锈泡沫铝具有优异的耐腐蚀性能；添加适量稀土元素可以提高耐腐蚀性能。提高泡沫铝耐腐蚀性能的途径为：降低小孔径泡沫铝的孔隙率；采用防锈泡沫铝和添加适量稀土元素；对泡沫铝进行喷漆处理或阳极氧化、化学转化处理等。
关键字: 闭孔泡沫铝，耐腐蚀性，防锈泡沫铝
（1. School of Materials Science and Engineering, Southeast University, Nanjing 210096,China2. School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, China）
Abstract:Abstract: The effects of the pore structure and the component of the matrix of closed-cell foamed aluminum on its corrosion resistance were studied. The results indicate that the corrosion resistance of foamed aluminum is worse than that of compact aluminum and coarsened remarkably with the increase of the porosity in the average diameter stated; The foamed Al-Mg-Re alloy has excellent corrosion resistance compared with other foamed aluminum; The corrosion resistance can be improved by adding rare earth into aluminum and aluminum alloys. The feasible approaches to improve the corrosion resistance were also discussed
Key words: closed-cell aluminum; corrosion resistance; anticorrosive foamed aluminum
