(1. 東南大學(xué) 材料科學(xué)與工程學(xué)院，南京2100962. 西安交通大學(xué) 航天航空學(xué)院，西安 710049)
摘 要: 研究閉孔泡沫鋁的孔結(jié)構(gòu)、基體對(duì)耐蝕性能的影響，探討提高耐腐蝕性能的途徑。結(jié)果表明：其耐蝕性遠(yuǎn)低于實(shí)體金屬，在孔徑相近情況下，隨孔隙率的增大，表面積增大，使耐腐蝕性能下降； Al-Mg-Re基防銹泡沫鋁具有優(yōu)異的耐腐蝕性能；添加適量稀土元素可以提高耐腐蝕性能。提高泡沫鋁耐腐蝕性能的途徑為：降低小孔徑泡沫鋁的孔隙率；采用防銹泡沫鋁和添加適量稀土元素；對(duì)泡沫鋁進(jìn)行噴漆處理或陽(yáng)極氧化、化學(xué)轉(zhuǎn)化處理等。
關(guān)鍵字: 閉孔泡沫鋁，耐腐蝕性，防銹泡沫鋁
（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
