The Corrosion Behavior of Stainless Steel 316L in Novel Quaternary Eutectic Molten Salt System
In this article, the corrosion behavior of stainless steel 316L in a low melting point novel LiNO3-NaNO3-KNO3-NaNO2 eutectic salt mixture was investigated at 695 K which is considered as thermally stable temperature using electrochemical and isothermal dipping methods. The passive region in the anod...
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| Format: | Article |
| Language: | English |
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De Gruyter
2017-03-01
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| Series: | High Temperature Materials and Processes |
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| Online Access: | https://doi.org/10.1515/htmp-2015-0202 |
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| author | Wang Tao Mantha Divakar Reddy Ramana G. |
| author_facet | Wang Tao Mantha Divakar Reddy Ramana G. |
| author_sort | Wang Tao |
| collection | DOAJ |
| description | In this article, the corrosion behavior of stainless steel 316L in a low melting point novel LiNO3-NaNO3-KNO3-NaNO2 eutectic salt mixture was investigated at 695 K which is considered as thermally stable temperature using electrochemical and isothermal dipping methods. The passive region in the anodic polarization curve indicates the formation of protective oxides layer on the sample surface. After isothermal dipping corrosion experiments, samples were analyzed using SEM and XRD to determine the topography, corrosion products, and scale growth mechanisms. It was found that after long-term immersion in the LiNO3-NaNO3-KNO3-NaNO2 molten salt, LiFeO2, LiFe5O8, Fe3O4, (Fe, Cr)3O4 and (Fe, Ni)3O4 oxides were formed. Among these corrosion products, LiFeO2 formed a dense and protective layer which prevents the SS 316L from severe corrosion. |
| format | Article |
| id | doaj-art-aa756a084c0543b2b474ebb1cb12d245 |
| institution | OA Journals |
| issn | 0334-6455 2191-0324 |
| language | English |
| publishDate | 2017-03-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | High Temperature Materials and Processes |
| spelling | doaj-art-aa756a084c0543b2b474ebb1cb12d2452025-08-20T02:38:22ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242017-03-0136325726510.1515/htmp-2015-0202The Corrosion Behavior of Stainless Steel 316L in Novel Quaternary Eutectic Molten Salt SystemWang Tao0Mantha Divakar1Reddy Ramana G.2Nucor Steel, 6061 East State Hwy 18, Blytheville, AR 72315, USA Rheem Manufacturing Company, 2600 Gunter Park Drive East, Montgomery, AL 36106, USA Department of Metallurgical and Materials Engineering, University of Alabama, Tuscaloosa, AL 35487–0202, USA In this article, the corrosion behavior of stainless steel 316L in a low melting point novel LiNO3-NaNO3-KNO3-NaNO2 eutectic salt mixture was investigated at 695 K which is considered as thermally stable temperature using electrochemical and isothermal dipping methods. The passive region in the anodic polarization curve indicates the formation of protective oxides layer on the sample surface. After isothermal dipping corrosion experiments, samples were analyzed using SEM and XRD to determine the topography, corrosion products, and scale growth mechanisms. It was found that after long-term immersion in the LiNO3-NaNO3-KNO3-NaNO2 molten salt, LiFeO2, LiFe5O8, Fe3O4, (Fe, Cr)3O4 and (Fe, Ni)3O4 oxides were formed. Among these corrosion products, LiFeO2 formed a dense and protective layer which prevents the SS 316L from severe corrosion.https://doi.org/10.1515/htmp-2015-0202corrosionstainless steelelectrochemicalisothermal dippingmolten saltoxide layer |
| spellingShingle | Wang Tao Mantha Divakar Reddy Ramana G. The Corrosion Behavior of Stainless Steel 316L in Novel Quaternary Eutectic Molten Salt System High Temperature Materials and Processes corrosion stainless steel electrochemical isothermal dipping molten salt oxide layer |
| title | The Corrosion Behavior of Stainless Steel 316L in Novel Quaternary Eutectic Molten Salt System |
| title_full | The Corrosion Behavior of Stainless Steel 316L in Novel Quaternary Eutectic Molten Salt System |
| title_fullStr | The Corrosion Behavior of Stainless Steel 316L in Novel Quaternary Eutectic Molten Salt System |
| title_full_unstemmed | The Corrosion Behavior of Stainless Steel 316L in Novel Quaternary Eutectic Molten Salt System |
| title_short | The Corrosion Behavior of Stainless Steel 316L in Novel Quaternary Eutectic Molten Salt System |
| title_sort | corrosion behavior of stainless steel 316l in novel quaternary eutectic molten salt system |
| topic | corrosion stainless steel electrochemical isothermal dipping molten salt oxide layer |
| url | https://doi.org/10.1515/htmp-2015-0202 |
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