Structural Anisotropy Parameters’ Effect on the Low-Temperature Impact Strength of Alloy Steels in Rolled Products
The present work is devoted to the study of the influence of the parameters of the structural anisotropy of rolled products on the low-temperature impact strength of alloyed steels. A quantitative metallographic analysis of the microstructure of rolled steel samples obtained after testing for low-te...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-06-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/13/7/1157 |
| _version_ | 1797588262863241216 |
|---|---|
| author | Tatyana Kovalyova Aristotel Issagulov Pavel Kovalev Vitaliy Kulikov Svetlana Kvon Saniya Arinova |
| author_facet | Tatyana Kovalyova Aristotel Issagulov Pavel Kovalev Vitaliy Kulikov Svetlana Kvon Saniya Arinova |
| author_sort | Tatyana Kovalyova |
| collection | DOAJ |
| description | The present work is devoted to the study of the influence of the parameters of the structural anisotropy of rolled products on the low-temperature impact strength of alloyed steels. A quantitative metallographic analysis of the microstructure of rolled steel samples obtained after testing for low-temperature toughness was carried out. It was established that the main reason for the decrease in the low-temperature impact strength of rolled steel samples is a highly developed segregation band enriched with carbon films formed at the stage of steelmaking conversion in violation of the technology of continuous casting of steel. The microstructural analysis of rolled stock samples was used in the work, and studies of the fracture surface of rolled stock samples were carried out with a scanning electron microscope using X-ray microanalysis methods. The studies carried out showed that the metallurgical quality of sheets of one heat, as well as individual samples within one sheet, varied over a wide range, from satisfactory to unacceptably low. It was established that the main reason for the decreasing low-temperature impact strength of rolled products was a highly developed segregation band enriched with carbon films, formed at the stage of steelmaking in case of violation of the continuous casting of steel technology. The multivariate statistical analysis carried out showed that only the size of the segregation band has an effect on the low-temperature impact strength of 10 mm thick rolled coil samples. |
| first_indexed | 2024-03-11T00:49:40Z |
| format | Article |
| id | doaj.art-37a54cfc8e97410ca4ae23ee60270931 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T00:49:40Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-37a54cfc8e97410ca4ae23ee602709312023-11-18T20:28:41ZengMDPI AGMetals2075-47012023-06-01137115710.3390/met13071157Structural Anisotropy Parameters’ Effect on the Low-Temperature Impact Strength of Alloy Steels in Rolled ProductsTatyana Kovalyova0Aristotel Issagulov1Pavel Kovalev2Vitaliy Kulikov3Svetlana Kvon4Saniya Arinova5Department of Nanotechnology and Metallurgy, Karaganda Technical University, Karaganda 100027, KazakhstanDepartment of Nanotechnology and Metallurgy, Karaganda Technical University, Karaganda 100027, KazakhstanDepartment of Steel and Alloys, Peter the Great St. Petersburg Polytechnic University, St. Petersburg 195251, RussiaDepartment of Nanotechnology and Metallurgy, Karaganda Technical University, Karaganda 100027, KazakhstanDepartment of Nanotechnology and Metallurgy, Karaganda Technical University, Karaganda 100027, KazakhstanDepartment of Nanotechnology and Metallurgy, Karaganda Technical University, Karaganda 100027, KazakhstanThe present work is devoted to the study of the influence of the parameters of the structural anisotropy of rolled products on the low-temperature impact strength of alloyed steels. A quantitative metallographic analysis of the microstructure of rolled steel samples obtained after testing for low-temperature toughness was carried out. It was established that the main reason for the decrease in the low-temperature impact strength of rolled steel samples is a highly developed segregation band enriched with carbon films formed at the stage of steelmaking conversion in violation of the technology of continuous casting of steel. The microstructural analysis of rolled stock samples was used in the work, and studies of the fracture surface of rolled stock samples were carried out with a scanning electron microscope using X-ray microanalysis methods. The studies carried out showed that the metallurgical quality of sheets of one heat, as well as individual samples within one sheet, varied over a wide range, from satisfactory to unacceptably low. It was established that the main reason for the decreasing low-temperature impact strength of rolled products was a highly developed segregation band enriched with carbon films, formed at the stage of steelmaking in case of violation of the continuous casting of steel technology. The multivariate statistical analysis carried out showed that only the size of the segregation band has an effect on the low-temperature impact strength of 10 mm thick rolled coil samples.https://www.mdpi.com/2075-4701/13/7/1157rolled productsbainiteanisotropy parametersimpact strengthsegregation band |
| spellingShingle | Tatyana Kovalyova Aristotel Issagulov Pavel Kovalev Vitaliy Kulikov Svetlana Kvon Saniya Arinova Structural Anisotropy Parameters’ Effect on the Low-Temperature Impact Strength of Alloy Steels in Rolled Products Metals rolled products bainite anisotropy parameters impact strength segregation band |
| title | Structural Anisotropy Parameters’ Effect on the Low-Temperature Impact Strength of Alloy Steels in Rolled Products |
| title_full | Structural Anisotropy Parameters’ Effect on the Low-Temperature Impact Strength of Alloy Steels in Rolled Products |
| title_fullStr | Structural Anisotropy Parameters’ Effect on the Low-Temperature Impact Strength of Alloy Steels in Rolled Products |
| title_full_unstemmed | Structural Anisotropy Parameters’ Effect on the Low-Temperature Impact Strength of Alloy Steels in Rolled Products |
| title_short | Structural Anisotropy Parameters’ Effect on the Low-Temperature Impact Strength of Alloy Steels in Rolled Products |
| title_sort | structural anisotropy parameters effect on the low temperature impact strength of alloy steels in rolled products |
| topic | rolled products bainite anisotropy parameters impact strength segregation band |
| url | https://www.mdpi.com/2075-4701/13/7/1157 |
| work_keys_str_mv | AT tatyanakovalyova structuralanisotropyparameterseffectonthelowtemperatureimpactstrengthofalloysteelsinrolledproducts AT aristotelissagulov structuralanisotropyparameterseffectonthelowtemperatureimpactstrengthofalloysteelsinrolledproducts AT pavelkovalev structuralanisotropyparameterseffectonthelowtemperatureimpactstrengthofalloysteelsinrolledproducts AT vitaliykulikov structuralanisotropyparameterseffectonthelowtemperatureimpactstrengthofalloysteelsinrolledproducts AT svetlanakvon structuralanisotropyparameterseffectonthelowtemperatureimpactstrengthofalloysteelsinrolledproducts AT saniyaarinova structuralanisotropyparameterseffectonthelowtemperatureimpactstrengthofalloysteelsinrolledproducts |