成膜电位对S22053不锈钢在FeCl_3溶液中钝化膜性能的影响
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摘要
应用阳极极化、恒电位成膜极化、电化学阻抗谱以及Mott-Schottky测试等方法研究了在质量分数6%FeCl_3溶液中S22053不锈钢表面钝化膜的性能。结果表明:S22053不锈钢的成膜电位在0.3～0.9V;当成膜电位在0.3～0.8V时,随成膜电位的增加阻抗最大模值增大,钝化膜稳定性增强,当成膜电位在0.8～0.9V时则相反;在不同成膜电位极化30min成膜后,钝化膜在扫描电位0～0.6V范围内均呈n型半导体特征,在0.6～0.9V范围内呈p型半导体特征;由电化学阻抗谱测试得到的钝化膜厚度和由Mott-Schottky曲线得到的空间电荷层厚度随成膜电位的变化趋势一致,二者均在成膜电位0.8V时出现峰值。
Passivation film performance on surface of S22053 stainless steel in 6 wt% FeCl_3 solution was studied by methods such as anodic polarization,constant potential film formation polarization,electrochemical impedance spectroscopy and Mott-Schottky test.The results show that the film formation potential of S22053 stainless teel was between 0.3-0.9 V.The maximum module value of impedance increased with increasing film formation potential in the range of 0.3-0.8 V,indicating that the stability of the passivation film was enhanced;in the range of 0.8-0.9 V,the opposite was true.The passivation films,formed after polarization at different film formation potentials for 30 min,showed an n-type semiconductor characteristic in the scanning potential range of0-0.6 V,and a p-type semiconductor characteristic in the range of 0.6-0.9 V.The change of the passivation film thickness with the film formation potential obtained by electrochemical impedance spectroscopy was consistent with the change of the space charge layer thickness with the film formation potential obtained by Mott-Schottky curves;both reached peak values at film formation potential of 0.8 V.
Passivation film performance on surface of S22053 stainless steel in 6 wt% FeCl_3 solution was studied by methods such as anodic polarization,constant potential film formation polarization,electrochemical impedance spectroscopy and Mott-Schottky test.The results show that the film formation potential of S22053 stainless teel was between 0.3-0.9 V.The maximum module value of impedance increased with increasing film formation potential in the range of 0.3-0.8 V,indicating that the stability of the passivation film was enhanced;in the range of 0.8-0.9 V,the opposite was true.The passivation films,formed after polarization at different film formation potentials for 30 min,showed an n-type semiconductor characteristic in the scanning potential range of0-0.6 V,and a p-type semiconductor characteristic in the range of 0.6-0.9 V.The change of the passivation film thickness with the film formation potential obtained by electrochemical impedance spectroscopy was consistent with the change of the space charge layer thickness with the film formation potential obtained by Mott-Schottky curves;both reached peak values at film formation potential of 0.8 V.
引文
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[18]庄朋强,肖占文,朱向东,等.钽阳极氧化膜的半导体性研究[J].电子元件与材料,2011,30(8):35-39.
[19]梁平,李晓刚,杜翠薇,等.X80和X70管线钢在NaHCO3溶液中钝化膜的电化学性能[J].石油化工高等学校学报,2008,21(2):1-5.
[20]赵阳,梁平,史艳华,等.NaHCO3溶液中X100和X80管线钢钝化膜性能比较[J].中国腐蚀与防护学报,2013,33(6):455-462.
[21]贾志军,李晓刚,梁平,等.成膜电位对X70管线钢在NaHCO3溶液中钝化膜电化学性能的影响[J].中国腐蚀与防护学报,2010,30(3):241-245.
[2]杜建波.304不锈钢钝化膜在海水介质中的半导体特性研究[D].青岛:中国海洋大学,2007.
[3]尹玲,陈昌国,刘渝萍,等.不锈钢钝化膜半导体特性的研究进展[J].材料导报,2011,25(21):62-65.
[4]王超,支玉明,盛敏奇,等.AISI304不锈钢钝化膜在电解质溶液中腐蚀时的半导体性质[J].腐蚀与防护,2009,30(6):369-372.
[5]梁剑雄,王长军,高韩蓉,等.微观调控对13Cr15Ni4Mo3N高强不锈钢电化学行为钝化膜性能的影响[J].腐蚀科学与防护技术,2017,29(4):401-406.
[6]程学群,李晓刚,杜翠薇,等.316L不锈钢在醋酸溶液中的钝化膜电化学性质[J].北京科技大学学报,2007,29(9):911-915.
[7]林玉华,杜荣归,胡融刚,等.不锈钢钝化膜耐蚀性与半导体特性的关联研究[J].物理化学学报,2005,21(7):740-745.
[8]桂艳,高岩.不锈钢表面钝化膜特性的研究进展[J].特殊钢,2011,32(3):20-24.
[9]李金波,郑茂盛,朱杰武.304L不锈钢钝化膜半导体性能研究[J].腐蚀科学与防护技术,2006,18(5):348-352.
[10]张茂胜,王润生,王庭暄,等.304L不锈钢钝化膜的半导体性能研究[J].环境技术,2013(3):41-44.
[11]程学群,李晓刚,杜翠薇.316L和2205不锈钢在醋酸溶液中钝化膜的生长及其半导体属性的研究[J].科学通报,2009,54(1):104-109.
[12]徐海嵩.316L不锈钢再钝化行为规律及其钝化膜稳定性研究[D].北京:北京科技大学,2016.
[13]陈长风,姜瑞景,张国安,等.双极性半导体钝化膜空间电荷电容分析[J].物理化学学报,2009,25(3):463-469.
[14]陈长风,姜瑞景,钱进森,等.双极性半导体钝化膜空间电荷电容分析(Ⅱ)[J].物理化学学报,2009,25(6):1213-1218.
[15]范林,李晓刚,杜翠薇,等.X80管线钢钝化膜在各种高浓度NaHCO3溶液中的电化学行为[J].中国腐蚀与防护学报,2012,32(4):322-326.
[16]钟庆东,王超,鲁雄刚,等.304不锈钢钝化膜在不同溶液中的半导体导电行为[J].中国腐蚀与防护学报,2008,28(6):341-344.
[17]李金波,左剑恶.温度对X80管线钢钝化膜电化学性能的影响[J].中国腐蚀与防护学报,2009,29(1):40-43.
[18]庄朋强,肖占文,朱向东,等.钽阳极氧化膜的半导体性研究[J].电子元件与材料,2011,30(8):35-39.
[19]梁平,李晓刚,杜翠薇,等.X80和X70管线钢在NaHCO3溶液中钝化膜的电化学性能[J].石油化工高等学校学报,2008,21(2):1-5.
[20]赵阳,梁平,史艳华,等.NaHCO3溶液中X100和X80管线钢钝化膜性能比较[J].中国腐蚀与防护学报,2013,33(6):455-462.
[21]贾志军,李晓刚,梁平,等.成膜电位对X70管线钢在NaHCO3溶液中钝化膜电化学性能的影响[J].中国腐蚀与防护学报,2010,30(3):241-245.