研究了Fe-30Mn-9Al奥氏体钢在700℃、800℃和950℃空气中循环氧化160 h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160 h分别增重1.00和4.08 mg/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,160 h增重43.50 mg/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.
参考文献
| [1] | S C Chang, J Y Liu, H K Juang. Environment- assisted cracking of Fe- 32Mn- 9Al alloys in 3.5 % NaCl solution[J].Corrosion,1995, 51(5) :399. |
| [2] | M Ruscak, T P Perng. Deformation and cracking behavior of ironmaganese- aluminum alloys in NaCl solution[J]. Corrosion, 1996,52(6) :464. |
| [3] | 朱雪梅.Fe-Mn-Al合金在水溶液中电化学腐蚀行为[J],腐蚀科学与防护技术,1996,8(1):38. |
| [4] | X M Zhu, Y S Zhang. Investigation of the electrochemical corrosion ehavior and passive film for Fe - Mn, Fe - Mn - Al, and Fe - Mn- Al - Cr alloys in aqueous solutions[J]. Corrosion, 1998, 54(10):3. |
| [5] | J M Oh, M J McNallan, W E King, Microstructural development in the surface region during oxidation of iron - manganese - nickelsilicon alloys[J]. J. Electrochem. Soc., 1986, 133:1042 |
| [6] | J M Oh, MJ McNallan. The effect of oxidation - induced surface transformations on the anodic polarization characteristics of FeMnSi alloys[J]. Corrosion, 1987, 43:561. |
| [7] | S H Park, I S Chung, T W Kim. Characterization of the high- temperature oxidation behavior in Fe- 25Mn- 1.5Al - 0.5C alloy[J].Oxid. Met., 1998, 49(3/4) :349. |
| [8] | P Perez, F J Perez, C Gomez, et al. Oxidation behaviour of an austenitic Fe- 30Mn- 5Al- 0.5C alloy[J], Corro. Sci., 2002, 44:113 |
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