摘要
对铝合金进行了磷酸阳极化处理,测试了阳极化各阶段铝合金的力学性能和粘接性能,考察了阳极化铝合金粘接副在不同环境下的拉剪强度及其耐久性。结果表明:阳极化处理对铝合金力学性能影响较小;阳极化后铝合金的粘接性能大幅度提高,与铝合金粘接时拉剪强度提高了238％,与复合材料粘接时拉剪强度提高了近104％。阳极化铝合金粘接副具有较好的耐候性,经过100 h碱液浸泡后,铝合金／铝合金粘接副的拉剪强度降低了8．1％,经过60 d的室外放置后,铝合金／复合材料粘接副的拉剪强度基本保持不变;楔形试验结果表明阳极化铝合金粘接副具有较佳的耐久性,水分存在会加速楔形试样的失效。
The aluminum alloy LY12CZ was anodized in phosphoric acid solutions. The mechanical and adhesive properties of the anodized aluminum alloy were measured. The durability of the adherents and the lap shear strength of the adherents in different circumstances were studied. The mechanical properties of the aluminum alloy anodized showed little changes. The lap shear strength of the bond, in which the alloy was anodized, was promoted greatly and was 238% larger or over 104% larger when one of the adherents was a composite sample than that of the non-anodized one. The anodized aluminum adherents had good weathering resistance. The lap shear strength of the bond droped 8.1% after being dipped into alkaline water for 100 h and kept stable after being placed for 60 days outdoors. The anodized aluminum coupons had good durability while the water could accelerate the failure of bond.
出处
《机械工程材料》
CAS
CSCD
北大核心
2006年第8期52-56,共5页
Materials For Mechanical Engineering
基金
武器装备预研基金资助项目(51489040105KG0101)
关键词
铝合金
阳极化
粘接
aluminum alloy
anodizing
adhesive bonding
