Modifying Effect of a New Boron-Barium Ferroalloy on the Wear Resistance of Low-Chromium Cast Iron
This paper presents the results of a study and analysis of the effect of modifying low-chromium hypoeutectic cast iron with a new boron–barium ferroalloy on its properties—wear resistance and impact resistance—in comparison with traditional boron- and barium-containing additives. The uniqueness and...
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MDPI AG
2022-07-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/7/1153 |
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| author | Dastan Aubakirov Aristotel Issagulov Svetlana Kvon Vitaly Kulikov Yelena Chsherbakova Saniya Arinova |
| author_facet | Dastan Aubakirov Aristotel Issagulov Svetlana Kvon Vitaly Kulikov Yelena Chsherbakova Saniya Arinova |
| author_sort | Dastan Aubakirov |
| collection | DOAJ |
| description | This paper presents the results of a study and analysis of the effect of modifying low-chromium hypoeutectic cast iron with a new boron–barium ferroalloy on its properties—wear resistance and impact resistance—in comparison with traditional boron- and barium-containing additives. The uniqueness and novelty of the work lies in the study of the nature of changes in the structure and wear-resistant properties of low-chromium cast iron as a result of its modifying treatment with a new boron–barium ferroalloy. In a laboratory electric resistance furnace, low-chromium cast iron was melted, and four batches of prototypes were cast. Samples of the first batch, for subsequent comparison, were made without modification. When casting the remaining three batches of samples, the cast iron was modified with three different additives: ferroboron FeB12, ferrosilicobarium FeSi60Ba20, and a new complex boron–barium modifier. In order to compare the degree of effectiveness of the applied modifiers, a metallographic analysis of the structure was performed, hardness measurements were performed on the surface of the samples, and they were subjected to abrasion and cyclic shock-dynamic impact tests. In all cases, when modifying cast iron, there was an increase in hardness, a noticeable grinding of the microstructure, and a redistribution of structural components towards an increase in the proportion of perlite and finely dispersed ledeburite. A comparative analysis of the results of testing samples for dry friction and shock showed a higher surface resistance of cast samples made of modified cast iron compared to unmodified low-chromium cast iron of the same composition. A comparative study of the parameters of wear tracks and craters on damaged surfaces established that the most optimal combination of wear-resistant qualities of low-chromium cast iron occurs when it is treated with a complex boron–barium modifier, which is also evidenced by obtaining a more favorable microstructure. |
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| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T13:22:22Z |
| publishDate | 2022-07-01 |
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| record_format | Article |
| series | Metals |
| spelling | doaj.art-70b4ae97774941ad87edd5a928eda2f32023-11-30T21:27:50ZengMDPI AGMetals2075-47012022-07-01127115310.3390/met12071153Modifying Effect of a New Boron-Barium Ferroalloy on the Wear Resistance of Low-Chromium Cast IronDastan Aubakirov0Aristotel Issagulov1Svetlana Kvon2Vitaly Kulikov3Yelena Chsherbakova4Saniya Arinova5Department of Nanotechnology and Metallurgy, Karaganda Technical University, Ave. Nursultan Nazarbayev Blvd., No. 56, Karaganda 100027, KazakhstanDepartment of Nanotechnology and Metallurgy, Karaganda Technical University, Ave. Nursultan Nazarbayev Blvd., No. 56, Karaganda 100027, KazakhstanDepartment of Nanotechnology and Metallurgy, Karaganda Technical University, Ave. Nursultan Nazarbayev Blvd., No. 56, Karaganda 100027, KazakhstanDepartment of Nanotechnology and Metallurgy, Karaganda Technical University, Ave. Nursultan Nazarbayev Blvd., No. 56, Karaganda 100027, KazakhstanDepartment of Nanotechnology and Metallurgy, Karaganda Technical University, Ave. Nursultan Nazarbayev Blvd., No. 56, Karaganda 100027, KazakhstanDepartment of Nanotechnology and Metallurgy, Karaganda Technical University, Ave. Nursultan Nazarbayev Blvd., No. 56, Karaganda 100027, KazakhstanThis paper presents the results of a study and analysis of the effect of modifying low-chromium hypoeutectic cast iron with a new boron–barium ferroalloy on its properties—wear resistance and impact resistance—in comparison with traditional boron- and barium-containing additives. The uniqueness and novelty of the work lies in the study of the nature of changes in the structure and wear-resistant properties of low-chromium cast iron as a result of its modifying treatment with a new boron–barium ferroalloy. In a laboratory electric resistance furnace, low-chromium cast iron was melted, and four batches of prototypes were cast. Samples of the first batch, for subsequent comparison, were made without modification. When casting the remaining three batches of samples, the cast iron was modified with three different additives: ferroboron FeB12, ferrosilicobarium FeSi60Ba20, and a new complex boron–barium modifier. In order to compare the degree of effectiveness of the applied modifiers, a metallographic analysis of the structure was performed, hardness measurements were performed on the surface of the samples, and they were subjected to abrasion and cyclic shock-dynamic impact tests. In all cases, when modifying cast iron, there was an increase in hardness, a noticeable grinding of the microstructure, and a redistribution of structural components towards an increase in the proportion of perlite and finely dispersed ledeburite. A comparative analysis of the results of testing samples for dry friction and shock showed a higher surface resistance of cast samples made of modified cast iron compared to unmodified low-chromium cast iron of the same composition. A comparative study of the parameters of wear tracks and craters on damaged surfaces established that the most optimal combination of wear-resistant qualities of low-chromium cast iron occurs when it is treated with a complex boron–barium modifier, which is also evidenced by obtaining a more favorable microstructure.https://www.mdpi.com/2075-4701/12/7/1153low-chromium cast ironmodificationboronbariumwear resistancehardness |
| spellingShingle | Dastan Aubakirov Aristotel Issagulov Svetlana Kvon Vitaly Kulikov Yelena Chsherbakova Saniya Arinova Modifying Effect of a New Boron-Barium Ferroalloy on the Wear Resistance of Low-Chromium Cast Iron Metals low-chromium cast iron modification boron barium wear resistance hardness |
| title | Modifying Effect of a New Boron-Barium Ferroalloy on the Wear Resistance of Low-Chromium Cast Iron |
| title_full | Modifying Effect of a New Boron-Barium Ferroalloy on the Wear Resistance of Low-Chromium Cast Iron |
| title_fullStr | Modifying Effect of a New Boron-Barium Ferroalloy on the Wear Resistance of Low-Chromium Cast Iron |
| title_full_unstemmed | Modifying Effect of a New Boron-Barium Ferroalloy on the Wear Resistance of Low-Chromium Cast Iron |
| title_short | Modifying Effect of a New Boron-Barium Ferroalloy on the Wear Resistance of Low-Chromium Cast Iron |
| title_sort | modifying effect of a new boron barium ferroalloy on the wear resistance of low chromium cast iron |
| topic | low-chromium cast iron modification boron barium wear resistance hardness |
| url | https://www.mdpi.com/2075-4701/12/7/1153 |
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