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低合金鋼海水腐蝕銹層離海水后的穩定性的穆斯堡爾譜研究

  • 摘要: 本文對銹層離海后在不同經歷下的穩定性進行了研究。試樣掛片離海后采用酒精浸泡去水,冷風吹干去除酒精,然后用環氧樹脂涂封銹層,外面用氣相防銹紙包扎并放入干燥器中進行保護。取樣時,在氬氣柜中取下銹層后立即放入充氬的試管中。再從試管中取出部分銹樣放入有機玻璃制的穆斯堡爾譜樣品盒,并將縫隙密封。這樣的操作能保留極不穩定的Fe(OH)2。如果讓銹層與空氣接觸,則Fe(OH)2很快分解消失,但其它物相可經歷相當長的時間而不變化。物相是否發生了變化是根據穆斯堡爾譜判斷的。

     

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