许多人都认为铝不容易生锈,事实上铝比铁还容易生锈!不过铝生了锈仍是漂漂亮亮的,不像铁生了锈那样满身是疤。金属生锈,本质上大多是金属被空气中的氧气氧化了。铁生锈后,生成的铁锈是疏松的,覆盖在铁的表面,不仅显而易见,而且氧气可以乘隙而入,继续氧化里层的铁,直至把一块铁全部锈蚀完毕。铝却不然,铝很容易与氧气化合生成铝锈——三氧化二铝,或简称氧化铝。氧化铝是 Many people think that aluminum is not easy to rust, in fact, aluminum is also easier to rust than iron! However, aluminum rust is still beautiful, unlike rusty as covered with scars. Metal rust, in essence, is mostly metal oxide by the oxygen in the air. Iron rust, the rust generated is loose, covering the surface of the iron, not only obvious, and oxygen can take advantage of the gap into, continue to oxidize the inner layer of iron until all the iron is completed a piece of rust is completed. Aluminum is not, aluminum is easily combined with oxygen to generate aluminum rust - aluminum oxide, or simply alumina. Alumina is