Corrosion and inhibition of N80 steel in 5% HCl solution by SA1-3. Issue 6 (6th November 2017)

• Record Type: Journal Article
• Authors: Zhao, Liqiang; Zhu, Yanhua; Liu, Pingli; Zhang, Jian; Liu, Yigang
• Is Part Of: Anti-corrosion methods and materials. Volume 64:Issue 6(2017)
• Page Start: 634
• Page End: 643
• Publication Date: 2017-11-06
• Subjects: N80 steel -- Corrosion products -- Pitting corrosion -- HCl solution -- SA1-3; Corrosion and anti-corrosives -- Periodicals; 620.11223
• DOI: 10.1108/ACMM-02-2017-1764
• Languages: English
• ISSNs: 0003-5599

Abstract

Abstract : Purpose: This paper aims to describe the corrosion behavior and possibility of inhibition by corrosion inhibitor SA1-3 in acidizing solution (5 per cent hydrochloric acid [HCl] solution). The study aims to explain the mechanism of corrosion and inhibition of N80 steel in 5 per cent HCl solution to provide theoretical basis for expanding the range of application of N80 steel in acidification process. Design/methodology/approach: This paper opted for a laboratory study using simulation of acidizing solution to do the experiments. The results of experiments including weight-loss method, electrochemical method and surface analysis were used to explain the mechanism of corrosion and inhibition so as to predict the dissolution progress of N80 steel in 5 per cent HCl solution with and without inhibitor SA1-3. Findings: This paper provides theoretical insights about how to inhibit the corrosion behavior of N80 steel in 5 per cent HCl solution. It suggests that the corrosion inhibitor which can form a protective film on the steel surface should be used to expand the application of N80 steel in acidizing solution. The inhibitor SA1-3 is a kind of cathodic corrosion-controlling inhibitor which mainly inhibits cathode corrosion; it cannot change the corrosion mechanism of N80 steel. Originality/value: This paper provides a theoretical basis for the corrosion behavior and inhibition mechanism of N80 steel in acidizing solution.