| 310S和AL-6XN不锈钢在熔融MgCl_2中的腐蚀行为 |
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| 引用本文： | 俞进进,路贵民,尚淑珍,于建国. 310S和AL-6XN不锈钢在熔融MgCl_2中的腐蚀行为[J]. 腐蚀与防护, 2011, 0(1) |
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| 作者姓名： | 俞进进 路贵民 尚淑珍 于建国 |
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| 作者单位： | 华东理工大学资源与环境工程学院;华东理工大学机械与动力工程学院; |
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| 基金项目： | 国家863计划重点项目(No.2009AA06Z102) |
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| 摘 要： | 研究了310S和AL-6XN两种不锈钢在800℃下MgCl_2熔盐中的腐蚀行为,采用X射线衍射仪(XRD)和金相显微镜对腐蚀产物和截面形貌进行了分析。结果表明,两者都为均匀腐蚀,310S初始腐蚀速率比AL-6XN大很多,之后两者均慢慢减小并趋近于零。由腐蚀深度得到前者腐蚀等级为9级,后者为8级,都属于欠耐蚀。在800℃下,两种材料腐蚀过程符合三维扩散(Ginstring-Brounshtein)反应动力学模型,反应常数分别是0.0048和0.0081,并得到他们的动力学方程。在MgCl_2熔盐中AL-6XN比310S的耐腐蚀性能更好。
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| 关 键 词： | 熔盐 热腐蚀 奥氏体不锈钢 |
Corrision Behavior of 310S and AL-6XN Steels in Molten MgCl_2 |
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| YU Jin-jin,LU Gui-min,SHANG Shu-zhen,YU Jian-guo. Corrision Behavior of 310S and AL-6XN Steels in Molten MgCl_2[J]. Corrosion & Protection, 2011, 0(1) |
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| Authors: | YU Jin-jin LU Gui-min SHANG Shu-zhen YU Jian-guo |
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| Affiliation: | YU Jin-jin~1,LU Gui-min~1,SHANG Shu-zhen~2,YU Jian-guo~1 (1,2.East China University of Science and Technology,Shanghai 200237,China) |
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| Abstract: | The corrosion behaviors of 310S and AL-6XN steels in MgCl_2 molten salts were studied.The corrosion products and cross-section were amalyzed by means of X-ray diffraction(XRD) and metallurgical microscopy.Both steels showed uniform corrosion.310S had a higher initial corrosion rate than AL-6XN.The corrosion rate of both steels was slowed down and trended to zero afterward.According to the corrosion depth,corrosion grades of 310S and AL-6XN were classified as 9 and 8 respectively,indicating insufficient corr... |
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| Keywords: | molten salt hot corrosion austenitic stainless steel |
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