化工原料產(chǎn)品及廠家
其鈍化機(jī)理主要可用薄膜理論來(lái)解釋，即認(rèn)為鈍化是由于金屬與氧化性介質(zhì)作用，作用時(shí)在金屬表面生成一種非常薄的、致密的、覆蓋性能良好的、能堅(jiān)固地附在金屬表面上的鈍化膜。這層膜成獨(dú)立相存在，通常是氧和金屬的化合物。它起著把金屬與腐蝕介質(zhì)隔開的作用，防止金屬與腐蝕介質(zhì)直接接觸，從而使金屬基本停止溶解形成鈍態(tài)達(dá)到防止腐蝕的效果。
更新時(shí)間:2025-09-03
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