KINETIC STUDY OF 1020 CARBON STEEL CORROSION IN HYDROCHLORIC AND NITRIC ACID MEDIA
This study investigates the corrosion mechanism of 1020 carbon steel in strong acid solutions, relevant for industrial applications, using simple and effective laboratory methods. Direct (weight loss) and indirect (pH, ionic conductivity, open circuit potential and polarization curves) negotiations...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2025-08-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422025000800305&lng=en&tlng=en |
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| _version_ | 1849329623987388416 |
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| author | Fernando C. Oliveira Almir Silva Neto Lucas Brites Fares Tiago Almeida Silva Renata Maria Seara Martins |
| author_facet | Fernando C. Oliveira Almir Silva Neto Lucas Brites Fares Tiago Almeida Silva Renata Maria Seara Martins |
| author_sort | Fernando C. Oliveira |
| collection | DOAJ |
| description | This study investigates the corrosion mechanism of 1020 carbon steel in strong acid solutions, relevant for industrial applications, using simple and effective laboratory methods. Direct (weight loss) and indirect (pH, ionic conductivity, open circuit potential and polarization curves) negotiations were performed to evaluate the corrosion rate in different concentrations of hydrochloric acid (HCl) and nitric acid (HNO3). In the HCl system, zero-order kinetics were confirmed (k = 10–5 min g–1), indicating a bottleneck in the corrosion mechanism, confirmed by electrochemical tests and metallographic analyses that showed uniform corrosion. In the HNO3 system, corrosion had first-order kinetics in the first 60 min (k = 10–2-10–3 min g–1), followed by passivation of the steel surface due to the presence of nitrate ions. These findings are particularly relevant for the acid pickling industry, where HCl is more stable, while HNO3 accelerates corrosion, requiring additional regulations. The results obtained are useful for the development of corrosion control and prevention strategies, contributing to increase the durability of materials and optimize the efficiency of industrial processes. |
| format | Article |
| id | doaj-art-6145bfc0fac34b1abcfd1c026d6e40d6 |
| institution | Kabale University |
| issn | 1678-7064 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj-art-6145bfc0fac34b1abcfd1c026d6e40d62025-08-20T03:47:13ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642025-08-0148810.21577/0100-4042.20250177KINETIC STUDY OF 1020 CARBON STEEL CORROSION IN HYDROCHLORIC AND NITRIC ACID MEDIAFernando C. OliveiraAlmir Silva Netohttps://orcid.org/0000-0001-8559-4474Lucas Brites FaresTiago Almeida Silvahttps://orcid.org/0000-0002-7202-789XRenata Maria Seara Martinshttps://orcid.org/0009-0001-8614-6590This study investigates the corrosion mechanism of 1020 carbon steel in strong acid solutions, relevant for industrial applications, using simple and effective laboratory methods. Direct (weight loss) and indirect (pH, ionic conductivity, open circuit potential and polarization curves) negotiations were performed to evaluate the corrosion rate in different concentrations of hydrochloric acid (HCl) and nitric acid (HNO3). In the HCl system, zero-order kinetics were confirmed (k = 10–5 min g–1), indicating a bottleneck in the corrosion mechanism, confirmed by electrochemical tests and metallographic analyses that showed uniform corrosion. In the HNO3 system, corrosion had first-order kinetics in the first 60 min (k = 10–2-10–3 min g–1), followed by passivation of the steel surface due to the presence of nitrate ions. These findings are particularly relevant for the acid pickling industry, where HCl is more stable, while HNO3 accelerates corrosion, requiring additional regulations. The results obtained are useful for the development of corrosion control and prevention strategies, contributing to increase the durability of materials and optimize the efficiency of industrial processes.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422025000800305&lng=en&tlng=enpassivation of steelcorrosion mechanismschemical kineticshydrochloric acidnitric acid |
| spellingShingle | Fernando C. Oliveira Almir Silva Neto Lucas Brites Fares Tiago Almeida Silva Renata Maria Seara Martins KINETIC STUDY OF 1020 CARBON STEEL CORROSION IN HYDROCHLORIC AND NITRIC ACID MEDIA Química Nova passivation of steel corrosion mechanisms chemical kinetics hydrochloric acid nitric acid |
| title | KINETIC STUDY OF 1020 CARBON STEEL CORROSION IN HYDROCHLORIC AND NITRIC ACID MEDIA |
| title_full | KINETIC STUDY OF 1020 CARBON STEEL CORROSION IN HYDROCHLORIC AND NITRIC ACID MEDIA |
| title_fullStr | KINETIC STUDY OF 1020 CARBON STEEL CORROSION IN HYDROCHLORIC AND NITRIC ACID MEDIA |
| title_full_unstemmed | KINETIC STUDY OF 1020 CARBON STEEL CORROSION IN HYDROCHLORIC AND NITRIC ACID MEDIA |
| title_short | KINETIC STUDY OF 1020 CARBON STEEL CORROSION IN HYDROCHLORIC AND NITRIC ACID MEDIA |
| title_sort | kinetic study of 1020 carbon steel corrosion in hydrochloric and nitric acid media |
| topic | passivation of steel corrosion mechanisms chemical kinetics hydrochloric acid nitric acid |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422025000800305&lng=en&tlng=en |
| work_keys_str_mv | AT fernandocoliveira kineticstudyof1020carbonsteelcorrosioninhydrochloricandnitricacidmedia AT almirsilvaneto kineticstudyof1020carbonsteelcorrosioninhydrochloricandnitricacidmedia AT lucasbritesfares kineticstudyof1020carbonsteelcorrosioninhydrochloricandnitricacidmedia AT tiagoalmeidasilva kineticstudyof1020carbonsteelcorrosioninhydrochloricandnitricacidmedia AT renatamariasearamartins kineticstudyof1020carbonsteelcorrosioninhydrochloricandnitricacidmedia |