Corrosion rate determination of austenic steels in calcium hypochlorite solutions
This paper presents the results of testing the corrosion resistance of austenitic chromium-nickel steel X6 CrNiTi 18-10 and X6 CrNiNb 18-10 in solutions of calcium hypochlorite. For the tests were used potentiodynamic measurement methods. By graphical method of linear polarization, corrosion current...
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| Format: | Article |
| Language: | English |
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Engineering Society for Corrosion, Belgrade, Serbia
2016-06-01
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| Series: | Zaštita Materijala |
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| Online Access: | https://www.zastita-materijala.org/index.php/home/article/view/709 |
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| author | Danijela Z. Rajić Miloš B. Rajković Nemanja D. Tošković |
| author_facet | Danijela Z. Rajić Miloš B. Rajković Nemanja D. Tošković |
| author_sort | Danijela Z. Rajić |
| collection | DOAJ |
| description | This paper presents the results of testing the corrosion resistance of austenitic chromium-nickel steel X6 CrNiTi 18-10 and X6 CrNiNb 18-10 in solutions of calcium hypochlorite. For the tests were used potentiodynamic measurement methods. By graphical method of linear polarization, corrosion currents and corrosion potential were obtained on the intersection of the Tafel real E = f(log i) on the basis of potentiodynamic curves for the examined steels. The comparative method to determine the corrosion current density is the polarization resistance method. Based on corrosion currents were calculated corrosion rate of tested steel. Anodic polarization curves for both austenitic steel in the investigated solutions were shot in the interval of stationary potential of up to + 2.5V, to determine the areas of activity. Test results show that with increasing of calcium hypochlorite solution concentration, increase the pH of the solution and the concentration of active chlorine which causes a reduction in the corrosion resistance of the tested steel. These steels are resistant to corrosion in a 1% solution, stable in 10% solutions, and less resistant in 50% suspensions of calcium hypochlorite. |
| format | Article |
| id | doaj-art-ae0e77cd17c049e195a68d720c1a30ba |
| institution | Kabale University |
| issn | 0351-9465 2466-2585 |
| language | English |
| publishDate | 2016-06-01 |
| publisher | Engineering Society for Corrosion, Belgrade, Serbia |
| record_format | Article |
| series | Zaštita Materijala |
| spelling | doaj-art-ae0e77cd17c049e195a68d720c1a30ba2024-12-09T16:49:32ZengEngineering Society for Corrosion, Belgrade, SerbiaZaštita Materijala0351-94652466-25852016-06-0157229630410.5937/ZasMat1602296T708Corrosion rate determination of austenic steels in calcium hypochlorite solutionsDanijela Z. Rajić0Miloš B. Rajković1Nemanja D. Tošković2University of East Sarajevo, Faculty of Technology, Zvornik, Republic of Srpska, B&HUniversity of Belgrade, Faculty of Agriculture, SerbiaElixirZorka - Mineralna đubriva, ŠabacThis paper presents the results of testing the corrosion resistance of austenitic chromium-nickel steel X6 CrNiTi 18-10 and X6 CrNiNb 18-10 in solutions of calcium hypochlorite. For the tests were used potentiodynamic measurement methods. By graphical method of linear polarization, corrosion currents and corrosion potential were obtained on the intersection of the Tafel real E = f(log i) on the basis of potentiodynamic curves for the examined steels. The comparative method to determine the corrosion current density is the polarization resistance method. Based on corrosion currents were calculated corrosion rate of tested steel. Anodic polarization curves for both austenitic steel in the investigated solutions were shot in the interval of stationary potential of up to + 2.5V, to determine the areas of activity. Test results show that with increasing of calcium hypochlorite solution concentration, increase the pH of the solution and the concentration of active chlorine which causes a reduction in the corrosion resistance of the tested steel. These steels are resistant to corrosion in a 1% solution, stable in 10% solutions, and less resistant in 50% suspensions of calcium hypochlorite.https://www.zastita-materijala.org/index.php/home/article/view/709austenitic chromium-nickel steelspolarization curvespotentiodynamic measurementmethodssolution of ca(ocl)2graphical methods of linear polarization |
| spellingShingle | Danijela Z. Rajić Miloš B. Rajković Nemanja D. Tošković Corrosion rate determination of austenic steels in calcium hypochlorite solutions Zaštita Materijala austenitic chromium-nickel steels polarization curves potentiodynamic measurementmethods solution of ca(ocl)2 graphical methods of linear polarization |
| title | Corrosion rate determination of austenic steels in calcium hypochlorite solutions |
| title_full | Corrosion rate determination of austenic steels in calcium hypochlorite solutions |
| title_fullStr | Corrosion rate determination of austenic steels in calcium hypochlorite solutions |
| title_full_unstemmed | Corrosion rate determination of austenic steels in calcium hypochlorite solutions |
| title_short | Corrosion rate determination of austenic steels in calcium hypochlorite solutions |
| title_sort | corrosion rate determination of austenic steels in calcium hypochlorite solutions |
| topic | austenitic chromium-nickel steels polarization curves potentiodynamic measurementmethods solution of ca(ocl)2 graphical methods of linear polarization |
| url | https://www.zastita-materijala.org/index.php/home/article/view/709 |
| work_keys_str_mv | AT danijelazrajic corrosionratedeterminationofaustenicsteelsincalciumhypochloritesolutions AT milosbrajkovic corrosionratedeterminationofaustenicsteelsincalciumhypochloritesolutions AT nemanjadtoskovic corrosionratedeterminationofaustenicsteelsincalciumhypochloritesolutions |