Study on Mechanism and Influencing Factors of Wheel Strengthening and Toughening of High-Speed and Heavy-Load Train
When maximum speed of 160 km/h is reached and the axle load reaches 25–30 tons, the train wheels need to have high strength and toughness. The main chemical elements affecting the strength and toughness of the wheel were determined by the mechanical features of the samples with different chemical co...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/1/81 |
| _version_ | 1797444035442376704 |
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| author | Tuosheng Jia Zhigang Shen Cuirong Liu Xinglong Zhao Xiaofeng Zhang |
| author_facet | Tuosheng Jia Zhigang Shen Cuirong Liu Xinglong Zhao Xiaofeng Zhang |
| author_sort | Tuosheng Jia |
| collection | DOAJ |
| description | When maximum speed of 160 km/h is reached and the axle load reaches 25–30 tons, the train wheels need to have high strength and toughness. The main chemical elements affecting the strength and toughness of the wheel were determined by the mechanical features of the samples with different chemical compositions. Through analysis of the impact fracture of typical specimens, the difference of wheel toughness was mainly reflected in the dimple band, crack source, and cleavage pattern. By SEM analysis of fracture cracks, the critical size difference was found to exist between the grains during brittle fracture, where the intergranular fracture between grains of different sizes is mainly due to the different interfacial stresses between grains of different sizes. |
| first_indexed | 2024-03-09T13:06:46Z |
| format | Article |
| id | doaj.art-7e0238fd21024b3185df8b80a01061b0 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-09T13:06:46Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-7e0238fd21024b3185df8b80a01061b02023-11-30T21:47:44ZengMDPI AGCrystals2073-43522023-01-011318110.3390/cryst13010081Study on Mechanism and Influencing Factors of Wheel Strengthening and Toughening of High-Speed and Heavy-Load TrainTuosheng Jia0Zhigang Shen1Cuirong Liu2Xinglong Zhao3Xiaofeng Zhang4School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaSchool of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaSchool of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaTaiyuan Heavy Industry Railway Transit Equipment Co., Ltd., Taiyuan 030032, ChinaTaiyuan Heavy Industry Railway Transit Equipment Co., Ltd., Taiyuan 030032, ChinaWhen maximum speed of 160 km/h is reached and the axle load reaches 25–30 tons, the train wheels need to have high strength and toughness. The main chemical elements affecting the strength and toughness of the wheel were determined by the mechanical features of the samples with different chemical compositions. Through analysis of the impact fracture of typical specimens, the difference of wheel toughness was mainly reflected in the dimple band, crack source, and cleavage pattern. By SEM analysis of fracture cracks, the critical size difference was found to exist between the grains during brittle fracture, where the intergranular fracture between grains of different sizes is mainly due to the different interfacial stresses between grains of different sizes.https://www.mdpi.com/2073-4352/13/1/81high-speed and heavy-load trainwheelstrength and toughnessmechanisminfluencing factor |
| spellingShingle | Tuosheng Jia Zhigang Shen Cuirong Liu Xinglong Zhao Xiaofeng Zhang Study on Mechanism and Influencing Factors of Wheel Strengthening and Toughening of High-Speed and Heavy-Load Train Crystals high-speed and heavy-load train wheel strength and toughness mechanism influencing factor |
| title | Study on Mechanism and Influencing Factors of Wheel Strengthening and Toughening of High-Speed and Heavy-Load Train |
| title_full | Study on Mechanism and Influencing Factors of Wheel Strengthening and Toughening of High-Speed and Heavy-Load Train |
| title_fullStr | Study on Mechanism and Influencing Factors of Wheel Strengthening and Toughening of High-Speed and Heavy-Load Train |
| title_full_unstemmed | Study on Mechanism and Influencing Factors of Wheel Strengthening and Toughening of High-Speed and Heavy-Load Train |
| title_short | Study on Mechanism and Influencing Factors of Wheel Strengthening and Toughening of High-Speed and Heavy-Load Train |
| title_sort | study on mechanism and influencing factors of wheel strengthening and toughening of high speed and heavy load train |
| topic | high-speed and heavy-load train wheel strength and toughness mechanism influencing factor |
| url | https://www.mdpi.com/2073-4352/13/1/81 |
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