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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Fe-30Mn-9Al奥氏体钢高温循环氧化特征
, PP. 31-33
Keywords: Fe-Mn-Al奥氏体钢,高温氧化,氧化层
Abstract:
研究了Fe-30Mn-9Al奥氏体钢在700℃、800℃和950℃空气中循环氧化160h表面形成的氧化膜形貌、成分和组织结构.Fe-30Mn-9Al奥氏体钢在700℃和800℃氧化时，初期增重较快，随着循环次数增加，氧化增重减小，氧化160h分别增重1.00和4.08mg/cm2.氧化层主要由Mn2O3，Al2O3和(Mn,Fe)2O3等相组成.在950℃，钢的氧化增重显著上升，160h增重43.50mg/cm2，表面形成了Fe2O3、MnO2以及MnAl2O4、Al2Fe2O6等复合氧化物.800℃下循环氧化后形成了多层氧化物膜，外层以Mn2O3型氧化物为主，内层以Al2O3为主；钢基体表面为富Fe、贫Mn的铁素体层.
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