目的：研究16Mn钢在4 g/L Na2 S2 O3的碱性溶液中的腐蚀行为和腐蚀机理。方法对16Mn钢的腐蚀形貌进行深入观察,对腐蚀产物的成分进行EDS分析,通过质量损失法和动力学方法分析腐蚀速率的变化,确定腐蚀机理。结果腐蚀形貌随腐蚀时间的推移由最初的点蚀发展为均匀腐蚀,腐蚀所生成的产物主要由O,S,Na,Fe元素组成。结论腐蚀产物主要是非晶态和晶态的羟基氧化铁和赤铁矿,随着腐蚀时间的延长,腐蚀越发严重,腐蚀速率逐渐下降。
ABSTRACT:Objective To study the corrosion behavior and corrosion mechanism of 16Mn steel in alkaline solution containing 4 g/L Na2 S2 O3 . Methods The corrosion morphology of 16Mn steel was observed, the components of the corrosion products were ana-lyzed by EDS, and the variation in corrosion rate was analyzed using the mass loss method and dynamic method to determine the corrosion mechanism. Results With the increase of corrosion time, the corrosion morphology evolved from the initial pitting corro-sion to uniform corrosion, and the corrosion products mainly consisted of O, S, Na, Fe elements. Conclusion The corrosion prod-ucts were mainly amorphous and crystalline FeOOH and Fe3 O4 . With the extension of corrosion time, the corrosion became more and more serious, and the corrosion rate gradually decreased.
参考文献
| [1] | 吕永新.冶金行业设备的腐蚀与防护概况[J].科技信息,2010(15):110. |
| [2] | 曹楚南.中国材料的自然环境腐蚀[M].北京:化学工业出版社,2005 |
| [3] | 杨景红,刘清友,王向东,李向阳,孙冬柏.耐候钢及其腐蚀产物的研究概况[J].中国腐蚀与防护学报,2007(06):367-372. |
| [4] | 张吉晨.氧化铝生产设备应力腐蚀的防治[J].全面腐蚀控制,2002(04):19-21,26. |
| [5] | 于凤昌.原油中不同硫化物的腐蚀研究[J].石油化工腐蚀与防护,2011(02):4-6. |
| [6] | 高阳,王天稳,王曦明.钢材在碱性条件下腐蚀性能的试验研究[J].钢结构,2011(03):68-72. |
| [7] | 王兵,李长俊,廖柯熹,蒋方泽,付先惠.含硫气田设备及管道的腐蚀与防腐[J].油气田环境保护,2007(04):40-43. |
| [8] | 郭军科,于金山,彭翔,尹力,曹顺安.加速腐蚀实验研究碳钢的大气腐蚀行为[J].表面技术,2014(4):68-73. |
| [9] | 谢建丽,金凯峰,蒋晓斌,鲁俊东,胡家元.带锈碳钢在稀NaCl溶液中的腐蚀行为[J].表面技术,2014(02):55-59. |
| [10] | 徐秀清,魏丹,俞莹滢,白真权,冯耀荣,马秋荣,赵文轸.Cl-浓度对含盐污水中10#碳钢腐蚀行为的影响[J].表面技术,2013(04):59-61,82. |
| [11] | YAMASHITA M .In Situ Observation of Initial Rust Forma-tion Process on Carbon Steel Under NaO and NaCl Solution Films with Wet/Dry Cycles Using Synchrotron Radiation X-rays[J].Corrosion Science,2005,47:2492-2498. |
| [12] | CHEN Y Y .Corrosion Resistance and Mechanical Proper-ties of Low-alloy Steels Under Atmospheric Conditions[J].Corrosion Science,2005,47:1001-1021. |
| [13] | TOSHIAKI O .Enhancement of Electric Conductivity of the Rust Layer by Adsorption of Water[J].Corrosion Science,2005,47:2571-2577. |
| [14] | 李牧铮;张军;祁凤玉 .环境因子与大气腐蚀关系数学模型和大气腐蚀预测[J].中国腐蚀与防护学报,1993,12(1):10-13. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%