哌啶作为AISI304不锈钢孔蚀缓蚀剂的电化学研究

中国腐蚀与防护学报

1996, Vol. 16

Issue (2): 94-100

研究报告

本期目录 | 过刊浏览

哌啶作为AISI304不锈钢孔蚀缓蚀剂的电化学研究

唐子龙;宋诗哲

天津大学材料系

AN ELECTROCHEMICAL INVESTIGATION ON THE INHIBITION EFFECT OF PIPERIDINE FOR TYPE 304 STAINLESS STEEL IN NaCl MEDIA

Tang Zilong;Song Shizhe(Dept. of Materials; Tianjin University)

全文: PDF(659 KB)

摘要: 选用哌啶作为ＡＩＳＩ３０４不锈钢在中性氯化钠介质中的孔蚀缓蚀剂。运用稳态阳极极化曲线和Ｐ－Ｇ瞬态响应测试研究哌啶的缓蚀作用。研究结果表明哌啶（ＰＤ）对氯化钠溶液中３０４不锈钢孔蚀的发生有相当强的抑制作用；１１００小时的长时间测试证实哌啶能明显阻滞孔蚀的发展过程。哌啶通过竞争吸附机制起缓蚀作用。在缓蚀剂分子与侵蚀性阴离子的浓度比高于“临界浓度比”的体系，哌啶的缓蚀作用明显优于浓度低于“临界比”的体系。所研究体系的“临界浓度比”为ＰＤ：Ｃｌ－＝１：５０～８０（摩尔比）。初步分析了高于“临界浓度比’体系的缓蚀剂阳极脱附及其对缓蚀性能的影响。

关键词 ：不锈钢, 孔蚀缓蚀剂, 局部腐蚀

Abstract：The inhibition effect of piperidine (PD) for pitting initiation and propagation of AISI 304 stainless steel in NaCl solution of various concentrations was investigated by potentiodynamic anodic polarization and P-G transient inhibition measurements. In order to evaluate the long-term inhibition performance of PD, the pitting breakdown potentials of the system, 304 SS/0.5 mol/L NaCl + 5 mmol/L PD, were measured continuously for 1100 hours. The results showed that the pitting propagation was inhibited to a certain extent. The possible inhibition mechanism of PD for pitting initiation and propagation was discussed according to the competitive adsorption theory. In addition, a new idea of "Critical Ratio" of PD concentration to Cl- concentration was suggested for the judgement of inhibition effect. For the system in which the ratio of PD concentration to Cl- concentration was greater than the "Critical Ration", the inhibition role was more satisfactory than that in which the ratio is less than the criterion. The anodic desorption of the inhibitor was discussed preliminarily.

Key words： Stainless steel Pitting inhibitor Localized corrosion

收稿日期: 1996-04-25

基金资助:金属腐蚀与防护国家重点实验室项目;;国家自然科学基金

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	唐子龙
	宋诗哲
44.8K

引用本文:

唐子龙;宋诗哲. 哌啶作为AISI304不锈钢孔蚀缓蚀剂的电化学研究[J]. 中国腐蚀与防护学报, 1996, 16(2): 94-100.
. AN ELECTROCHEMICAL INVESTIGATION ON THE INHIBITION EFFECT OF PIPERIDINE FOR TYPE 304 STAINLESS STEEL IN NaCl MEDIA. J Chin Soc Corr Pro, 1996, 16(2): 94-100.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1996/V16/I2/94

1ZucchiF,OmarIH,ThabaneliG．6SEIC,1985,8:15352苏润西,宋诗哲．腐蚀科学与防护技术,1993,5(4):2493DeberryDWViehbeckA．Corrosion,1988,44:2994宋诗哲,曹楚南．中国腐蚀与防护学报,1990,10(4):2975TangZL,SongSZ．CorrosionScience,1993,34(10):16076ChaudharyRS;NamboodhiriTKG,SinghIB．Br．Corros．J,1989,24(4):2737LynchPF,BrownCW．Corrosion//82;NACE,Paper218宋诗哲,唐子龙．腐蚀科学与防护技术,1992,4(1):27

[1]	冉斗, 孟惠民, 刘星, 李全德, 巩秀芳, 倪荣, 姜英, 龚显龙, 戴君, 隆彬. pH对14Cr12Ni3WMoV不锈钢在含氯溶液中腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2021, 41(1): 51-59.
[2]	左勇, 曹明鹏, 申淼, 杨新梅. MgCl₂-NaCl-KCl熔盐体系中金属Mg对316H不锈钢的缓蚀性能研究[J]. 中国腐蚀与防护学报, 2021, 41(1): 80-86.
[3]	王欣彤, 陈旭, 韩镇泽, 李承媛, 王岐山. 硫酸盐还原菌作用下2205双相不锈钢在3.5%NaCl溶液中应力腐蚀开裂行为研究[J]. 中国腐蚀与防护学报, 2021, 41(1): 43-50.
[4]	张浩, 杜楠, 周文杰, 王帅星, 赵晴. 模拟海水溶液中Fe³⁺对不锈钢点蚀的影响[J]. 中国腐蚀与防护学报, 2020, 40(6): 517-522.
[5]	马鸣蔚, 赵志浩, 荆思文, 于文峰, 谷义恩, 王旭, 吴明. 17-4 PH不锈钢在含SRB的模拟海水中的应力腐蚀开裂行为研究[J]. 中国腐蚀与防护学报, 2020, 40(6): 523-528.
[6]	赵柏杰, 范益, 李镇镇, 张博威, 程学群. 不同类型接触面对316L不锈钢缝隙腐蚀的影响[J]. 中国腐蚀与防护学报, 2020, 40(4): 332-341.
[7]	胡玉婷, 董鹏飞, 蒋立, 肖葵, 董超芳, 吴俊升, 李晓刚. 海洋大气环境下TC4钛合金与316L不锈钢铆接件腐蚀行为研究[J]. 中国腐蚀与防护学报, 2020, 40(2): 167-174.
[8]	秦越强, 左勇, 申淼. FLiNaK-CrF₃/CrF₂氧化还原缓冲熔盐体系对316L不锈钢耐蚀性能的影响[J]. 中国腐蚀与防护学报, 2020, 40(2): 182-190.
[9]	何壮,王兴平,刘子涵,盛耀权,米梦芯,陈琳,张岩,李宇春. 316L和HR-2不锈钢在盐酸液膜环境中的钝化与点蚀[J]. 中国腐蚀与防护学报, 2020, 40(1): 17-24.
[10]	武栋才,韩培德. 中温时效处理对SAF2304双相不锈钢耐蚀性的影响[J]. 中国腐蚀与防护学报, 2020, 40(1): 51-56.
[11]	郏义征, 赵明君, 程世婧, 王保杰, 王硕, 盛立远, 许道奎. 模拟人体体液中镁合金的腐蚀行为研究[J]. 中国腐蚀与防护学报, 2019, 39(6): 463-468.
[12]	骆鸿,高书君,肖葵,董超芳,李晓刚. 磁控溅射工艺对CrN薄膜及其腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2019, 39(5): 423-430.
[13]	付安庆,赵密锋,李成政,白艳,朱文军,马磊,熊茂县,谢俊峰,雷晓维,吕乃欣. 激光表面熔凝对超级13Cr不锈钢组织与性能的影响研究[J]. 中国腐蚀与防护学报, 2019, 39(5): 446-452.
[14]	史伟宁,杨树峰,李京社. 不锈钢中诱发局部腐蚀的贫Cr区研究进展[J]. 中国腐蚀与防护学报, 2019, 39(4): 281-290.
[15]	孙晓光,韩晓辉,张星爽,张志毅,李刚卿,董超芳. 超低碳奥氏体不锈钢焊接接头耐腐蚀性及环保型化学钝化工艺研究[J]. 中国腐蚀与防护学报, 2019, 39(4): 345-352.

Viewed

Full text

Abstract

Cited

Shared

Discussed