• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Eurocorr 2004 >Electrochemical study of corrosion inhibition of stainless steel inPhosphoric medium
【24h】

Electrochemical study of corrosion inhibition of stainless steel inPhosphoric medium

机译：磷介质中不锈钢缓蚀性能的电化学研究

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The corrosion of metals represents a terrible waste of both natural resources andmoney, the failure of some stainless steel resulting from pitting corrosion is some timesconsidered a technological problem, consequently, much effort has been expended inattempting to understand and overcome the corrosion there fore, many stainless steel/environment combinations have been studied. The use of heterocyclic compounds asinhibitors is one of the most practical methods for protection against corrosion in acidicmedia.In continuation of our work on development of macrocyclic compounds as corrosioninhibitors we report in our study the corrosion inhibiting behaviour of organic compoundMethoxy-2-Allyl-4 Phenol (MAP) containing co-ordinating and conjugaison groups, at threeforms (natural, polymerised and chemically treated ) on the corrosion of stainless steel inphosphoric acid.This study focused on the comparison for corrosion inhibition proprieties of thesedifferent applications using potentiodynamic polarization, electrochemical impedancespectroscopy and SEM.The specimen was evaluated to determine change in his corrosion potential andresistance polarization; These MAP products have exhibited corrosion inhibition bymaintaining a high resistance polarization (low corrosion rate) in each application. Theseresults reveal that this compound is efficient inhibitor in all forms; the most inhibitionefficiency is obtained with polymerized form.To further evaluate the test data, the steel surfaces were analyzed using scanningelectron microscopy, SEM observations of surface treated concrete confirmed presence ofinhibitor on the steel surfaces.
机译：金属的腐蚀代表了自然资源和金钱的巨大浪费，点蚀引起的某些不锈钢的失效有时被认为是技术问题，因此，人们花了很多精力去理解和克服那里的腐蚀，因此许多不锈钢已经研究了钢/环境组合。使用杂环化合物作为缓蚀剂是在酸性介质中最有效的防腐方法之一。在继续开发大环化合物作为缓蚀剂的工作中，我们在研究中报告了有机化合物甲氧基-2-烯丙基-4的缓蚀性能。含配位基团和共轭基团的苯酚（MAP）对不锈钢磷酸的腐蚀呈三种形式（天然，聚合和化学处理）。本研究着重于通过电位动力学极化，电化学阻抗谱对这些不同应用的缓蚀性能进行比较。对样品进行评估以确定其腐蚀电位和电阻极化的变化。这些MAP产品通过在每种应用中保持高电阻极化（低腐蚀速率）而表现出腐蚀抑制作用。这些结果表明该化合物是所有形式的有效抑制剂。为了进一步评估测试数据，使用扫描电子显微镜对钢表面进行了分析，对表面处理过的混凝土进行SEM扫描电镜观察证实了钢表面上存在抑制剂。

著录项

  • 来源
    《Eurocorr 2004》|2004年|1-7|共7页
  • 会议地点 Nice(FR)
  • 作者

    K.HNINI; A.CHTAINI; M.KHOUILI; A. ELBOUADILI;

  • 作者单位

    Laboratoire d'Electrochimie et de Bio corrosion Faculté des Sciences et Techniques Beni-Mellal. Maroc. Corresponding author: Pr. A. CHTAINI Faculté des Sciences et Techniques BP: 523 Beni-Mellal Maroc. Fax: 00/212/23.48.52.01. Email: chtainia@yahoo.fr;

    Laboratoire d'Electrochimie et de Bio corrosion Faculté des Sciences et Techniques Beni-Mellal. Maroc;

    Laboratoire de Chimie Organique et Analytique Faculté des Sciences et Techniques Beni-Mellal. Maroc;

  • 会议组织
  • 原文格式 PDF
  • 正文语种
  • 中图分类
  • 关键词

    Stainless steel; phosphoric acid; inhibitor; electrochemical study; surface analysis;

    机译：不锈钢;磷酸抑制剂电化学研究表面分析;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号