摘要
颗粒增强铝基复合材料强度及模高量,具有很大的应用前景,但增强颗粒的引入使复合材料的耐蚀性大大下降,同时也给其阳极氧化带来困难。为此,将阳极氧化工艺运用于一种原位合成TiB2/6351Al复合材料,研究了阳极氧化液成分、添加剂、氧化电流密度、温度和时间对膜层质量的影响。对膜层的性能测试表明,所得氧化膜大大提高了材料的耐蚀性能。此外,通过对氧化膜表面与截面结构的深入观察,分析了该复合材料氧化膜的生长机理。
Particle reinforced aluminum - matrix composites have been widely adopted for their high strength and module, but the exitence of reinforced particles decreases the corrosion resistance and makes the anodizing of composite difficult. Herein, the anodizing was applied to a new in - situ TiB2 particle reinforced 6351 aluminum alloy and the available film greatly improved its corrosion resistance. With observation of the film surface and cross - section morphology, the particular film - growth mechanism of anodizing was discussed further.
出处
《材料保护》
CAS
CSCD
北大核心
2007年第10期61-64,共4页
Materials Protection
关键词
阳极氧化
复合材料
铝合金
TIB2
耐蚀性能
anodizing
composite material
aluminum alloy
TiB2
conrosion resistance
