Investigation of the Thermodynamic Transformation and Rare Earth Microalloying of a Medium Carbon-Medium Alloy Steel for Large Ball Mill Liners
The medium carbon-medium alloy steel was developed for the manufacture of large ball mill liners and sports equipment. In this study, the continuous cooling transformation curve of a novel type of medium carbon-medium alloy steel was measured with a thermal simulation machine; based on this curve, t...
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MDPI AG
2022-06-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/13/4448 |
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| author | Xi Yang Xinghe Wang Jingpei Xie Yuhe Li Dixin Yang |
| author_facet | Xi Yang Xinghe Wang Jingpei Xie Yuhe Li Dixin Yang |
| author_sort | Xi Yang |
| collection | DOAJ |
| description | The medium carbon-medium alloy steel was developed for the manufacture of large ball mill liners and sports equipment. In this study, the continuous cooling transformation curve of a novel type of medium carbon-medium alloy steel was measured with a thermal simulation machine; based on this curve, the hardening and tempering processes were optimized. The steel was then complex modified with alkaline earth and rare earth alloys. The mechanical properties of the treated steel were tested. The microstructure of the steel was analyzed by metallographic microscopy, X-ray diffraction, scanning electron microscopy and transmission electron microscopy, and the wear surface of the steel was analyzed by a three-dimensional morphometer. After high-temperature tempering, the microstructure transformed into tempered sorbite, which possesses good mechanical properties and can adapt to working conditions that require high strength and toughness. Rare earth or alkaline earth modification of the medium carbon-medium alloy steel promoted microstructural uniformity and grain refinement and improved the mechanical and anti-wear properties. |
| first_indexed | 2024-03-09T12:49:05Z |
| format | Article |
| id | doaj.art-7db8e91560c740519526997a0a171f26 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T12:49:05Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-7db8e91560c740519526997a0a171f262023-11-30T22:08:49ZengMDPI AGMaterials1996-19442022-06-011513444810.3390/ma15134448Investigation of the Thermodynamic Transformation and Rare Earth Microalloying of a Medium Carbon-Medium Alloy Steel for Large Ball Mill LinersXi Yang0Xinghe Wang1Jingpei Xie2Yuhe Li3Dixin Yang4Guangdong Provincial Research Center for Sports Assistive Device Design Engineering and Technology, Guangzhou Sport University, Guangzhou 510500, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471000, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471000, ChinaGuangdong Provincial Research Center for Sports Assistive Device Design Engineering and Technology, Guangzhou Sport University, Guangzhou 510500, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471000, ChinaThe medium carbon-medium alloy steel was developed for the manufacture of large ball mill liners and sports equipment. In this study, the continuous cooling transformation curve of a novel type of medium carbon-medium alloy steel was measured with a thermal simulation machine; based on this curve, the hardening and tempering processes were optimized. The steel was then complex modified with alkaline earth and rare earth alloys. The mechanical properties of the treated steel were tested. The microstructure of the steel was analyzed by metallographic microscopy, X-ray diffraction, scanning electron microscopy and transmission electron microscopy, and the wear surface of the steel was analyzed by a three-dimensional morphometer. After high-temperature tempering, the microstructure transformed into tempered sorbite, which possesses good mechanical properties and can adapt to working conditions that require high strength and toughness. Rare earth or alkaline earth modification of the medium carbon-medium alloy steel promoted microstructural uniformity and grain refinement and improved the mechanical and anti-wear properties.https://www.mdpi.com/1996-1944/15/13/4448medium carbon-medium alloy steelcontinuous cooling transition curveheat treatmentmultivariate microalloyingmicrostructure |
| spellingShingle | Xi Yang Xinghe Wang Jingpei Xie Yuhe Li Dixin Yang Investigation of the Thermodynamic Transformation and Rare Earth Microalloying of a Medium Carbon-Medium Alloy Steel for Large Ball Mill Liners Materials medium carbon-medium alloy steel continuous cooling transition curve heat treatment multivariate microalloying microstructure |
| title | Investigation of the Thermodynamic Transformation and Rare Earth Microalloying of a Medium Carbon-Medium Alloy Steel for Large Ball Mill Liners |
| title_full | Investigation of the Thermodynamic Transformation and Rare Earth Microalloying of a Medium Carbon-Medium Alloy Steel for Large Ball Mill Liners |
| title_fullStr | Investigation of the Thermodynamic Transformation and Rare Earth Microalloying of a Medium Carbon-Medium Alloy Steel for Large Ball Mill Liners |
| title_full_unstemmed | Investigation of the Thermodynamic Transformation and Rare Earth Microalloying of a Medium Carbon-Medium Alloy Steel for Large Ball Mill Liners |
| title_short | Investigation of the Thermodynamic Transformation and Rare Earth Microalloying of a Medium Carbon-Medium Alloy Steel for Large Ball Mill Liners |
| title_sort | investigation of the thermodynamic transformation and rare earth microalloying of a medium carbon medium alloy steel for large ball mill liners |
| topic | medium carbon-medium alloy steel continuous cooling transition curve heat treatment multivariate microalloying microstructure |
| url | https://www.mdpi.com/1996-1944/15/13/4448 |
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