Effect of grain size on the corrosion resistance of low carbon steel
Systematic works on the effect of grain size on the corrosion resistance of low carbon steel are scant. In the present work, a spectrum of grain sizes was obtained by simple heat treatment routes in a typical low-carbon steel. It was revealed that two distinct stages for the dependency of corrosion...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ab62fa |
| _version_ | 1797747089544839168 |
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| author | Maryam Soleimani Hamed Mirzadeh Changiz Dehghanian |
| author_facet | Maryam Soleimani Hamed Mirzadeh Changiz Dehghanian |
| author_sort | Maryam Soleimani |
| collection | DOAJ |
| description | Systematic works on the effect of grain size on the corrosion resistance of low carbon steel are scant. In the present work, a spectrum of grain sizes was obtained by simple heat treatment routes in a typical low-carbon steel. It was revealed that two distinct stages for the dependency of corrosion current density ( i _corr ) on the grain size exist. Above a limiting average grain size of ∼22 μ m, i _corr decreased slowly with increasing grain size. However, below this limiting value, i _corr increased rapidly, which was related to the increased density of grain boundaries as interpreted by theoretical calculation of number of grains per unit area. Conclusively, a grain size of ∼22 μ m (ASTM grain-size number of 8) was considered to be an optimum value according to the mechanical and corrosion standpoints. |
| first_indexed | 2024-03-12T15:47:12Z |
| format | Article |
| id | doaj.art-9bc27f44072c46929ecbcf8074cce425 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:47:12Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-9bc27f44072c46929ecbcf8074cce4252023-08-09T15:23:52ZengIOP PublishingMaterials Research Express2053-15912020-01-017101652210.1088/2053-1591/ab62faEffect of grain size on the corrosion resistance of low carbon steelMaryam Soleimani0Hamed Mirzadeh1https://orcid.org/0000-0001-7179-0052Changiz Dehghanian2School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran , PO Box 11155-4563, Tehran, IranSchool of Metallurgy and Materials Engineering, College of Engineering, University of Tehran , PO Box 11155-4563, Tehran, IranSchool of Metallurgy and Materials Engineering, College of Engineering, University of Tehran , PO Box 11155-4563, Tehran, IranSystematic works on the effect of grain size on the corrosion resistance of low carbon steel are scant. In the present work, a spectrum of grain sizes was obtained by simple heat treatment routes in a typical low-carbon steel. It was revealed that two distinct stages for the dependency of corrosion current density ( i _corr ) on the grain size exist. Above a limiting average grain size of ∼22 μ m, i _corr decreased slowly with increasing grain size. However, below this limiting value, i _corr increased rapidly, which was related to the increased density of grain boundaries as interpreted by theoretical calculation of number of grains per unit area. Conclusively, a grain size of ∼22 μ m (ASTM grain-size number of 8) was considered to be an optimum value according to the mechanical and corrosion standpoints.https://doi.org/10.1088/2053-1591/ab62falow carbon steelcorrosionmechanical propertiesgrain boundaries |
| spellingShingle | Maryam Soleimani Hamed Mirzadeh Changiz Dehghanian Effect of grain size on the corrosion resistance of low carbon steel Materials Research Express low carbon steel corrosion mechanical properties grain boundaries |
| title | Effect of grain size on the corrosion resistance of low carbon steel |
| title_full | Effect of grain size on the corrosion resistance of low carbon steel |
| title_fullStr | Effect of grain size on the corrosion resistance of low carbon steel |
| title_full_unstemmed | Effect of grain size on the corrosion resistance of low carbon steel |
| title_short | Effect of grain size on the corrosion resistance of low carbon steel |
| title_sort | effect of grain size on the corrosion resistance of low carbon steel |
| topic | low carbon steel corrosion mechanical properties grain boundaries |
| url | https://doi.org/10.1088/2053-1591/ab62fa |
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