LIU Xiaoxiang,FAN Wenjun,XU Zhao,et al.Electro-polishing of 316L Stainless Steel Bipolar Plate[J].Plating & Finishing,2020,(3):6-11.[doi:10.3969/j.issn.1001-3849.2020.03.002]
316L不锈钢金属双极板的电解抛光工艺
- Title:
- Electro-polishing of 316L Stainless Steel Bipolar Plate
- 文献标志码:
- A
- 摘要:
- 研究了不同温度、电压、时间对电解抛光处理后316L不锈钢金属双极板的表面质量及其耐腐蚀性能的影响，从而确定最佳的试验条件。通过单因素试验分析方法，制定了三因素三水平试验方案，结合不同条件下抛光后样品的表面形貌及其在0.5 mol/L硫酸+2 mmol/L F-溶液中动电位极化曲线测试结果，分析了不同因素条件对抛光质量的影响。试验结果表明，当电解抛光液温度为75±5 ℃，电压为7 V，抛光时间为7 min时，抛光后所得到的316L不锈钢双极板表面质量最佳，且对应的耐腐蚀性能最好。
- Abstract:
- The influence of different temperature, voltage and time on the surface quality and corrosion resistance of 316L stainless steel bipolar plate after electro-polishing was studied, so as to determine the best test conditions. A three-factor, three-level test protocol was developed by using a single factor test analysis method. The effects of different factors on the polishing quality were analyzed by combining the surface morphology of the polished samples under different conditions and the results of the dynamic potential polarization curves in solution with 0.5 mol/L sulfuric acid and 2 mmol/L F-. The test results show that the best surface quality and corrosion resistance can be obtained by electro-polishing 316L stainless steel bipolar plate under the conditions of electrolyte temperature of 75±5 ℃, voltage of 7 V and time of 7 min.
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备注/Memo
收稿日期： 2019-06-25；修回日期： 2019-09-16
通信作者： 王新东，echem@ustb.edu.cn