Study of pitting corrosion of L245 steel in H2S environments induced by imidazoline quaternary ammonium salts
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- 作者：Peng Hana ; b ; Changfeng Chena ; b ; chen_c_f@163.com" class="auth_mail" title="E-mail the corresponding author ; Haobo Yua ; b ; Yizhen Xua ; b ; Yanjun Zhenga ; b
- 关键词：A. Carbon steel ; B. Weight loss ; B. AFM ; C. Acid corrosion ; C. Acid inhibition
- 刊名：Corrosion Science
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：112
- 期：Complete
- 页码：128-137
- 全文大小：6056 K
文摘
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L245 steel suffered severe pitting corrosion only when IM inhibitor was added.
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NaCl accumulated on local L245 steel surface area and it forms galvanic corrosion system with surrounding area.
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The surface potential of NaCl accumulated area is low and pitting corrosion occur in this area.
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The extent of pitting corrosion on L245 steel decreased with increasing IM inhibitor concentration.
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The pitting corrosion was inhibited by IM + OP inhibitor.