研究了超级奥氏体不锈钢AL-6XN在500℃，550℃和600℃／25MPa超临界水中的腐蚀行为，通过扫描电镜-电子能谱（SEM—EDX）、X射线衍射（XRD）和x射线光电子能谱（XPS）分析了氧化膜的显微形貌、组织结构与成分分布。结果表明，氧化膜为双层结构，氧化膜中含Fe3O4，Cr2O3，Fe2O3和FeCr2O4相。AL-6XN在超临界水中氧化膜存在脱落现象，脱落程度随温度升高而加剧。
The corrosion behavior of super-austenitic stainless steel AL-6XN exposed to supercritical wa- ter (SCW) at 500℃, 550 ℃, 600 ℃/25 MPa respectively was investigated by means of mass loss method, scanning electron microscope/energy dispersive X-ray spectroscopy, X-ray diffraction and X-ray photoelectron spectroscopy. A dual-layered oxide scale formed on AL-6XN, which was mainly composed of Fe3O4, Cr2O3, Fe2O3 and FeCr2O4. The oxide scale had a tendency to spall, which increased with the increase of exposure temperature.
参考文献
| [1] | Was GS;Ampornrat P;Gupta G;Teysseyre S;West EA;Allen TR;Sridharan K;Tan L;Chen Y;Ren X .Corrosion and stress corrosion cracking in supercritical water[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2007(1/3):176-201. |
| [2] | 尹开锯,邱绍宇,唐睿,张强,张乐福,刘鸿.铁素体-马氏体钢P91和P92在超临界水中腐蚀后氧化膜多孔性分析[J].中国腐蚀与防护学报,2010(01):1-5. |
| [3] | Abed FH;Voyiadjis GZ .Plastic deformation modeling of AL-6XN stainless steel at low and high strain rates and temperatures using a combination of bcc and fcc mechanisms of metals[J].International Journal of Plasticity,2005(8):1618-1639. |
| [4] | Corrosion behavior of Hastelloy C-276 in supercritical water[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2009(9):2092. |
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