|
|
|
| Impact wear properties of dissimilar joints between bainitic frogs and pearlite rails |
| Pin-yong Zeng1, Chun-guang Zuo1, Xiao-yu Zhang1, Wei Li1 |
| 1 Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, Sichuan, China |
|
|
|
|
Abstract The impact wear behavior and damage mechanism of dissimilar welded joints between U26Mn frog and U75V rail before and after normalizing treatment were studied by cyclic impact tests. The experiment indicated that the impact wear volume of the joints increased with the increasing number of impact cycles. The main wear mechanisms include pitting wear, mild fatigue wear, delamination wear, and fatigue wear, and plastic deformation was the primary impact wear mechanism. Among them, fatigue wear had the greatest influence on wear volume, while other wear mechanisms had limited effect. The impact wear resistance of the base material was better than that of the heat-affected zone. Normalizing treatment was beneficial to improving the impact wear resistance of welded joints owing to its effect to promote pearlite recovery, grain refinement, and uniform distribution of grains. The martensite generated in the rail welded joints aggravated the impact wear damage to the materials, which should be avoided.
|
|
Received: 24 November 2022
Published: 25 January 2024
|
|
|
|
| Cite this article: |
|
Pin-yong Zeng,Chun-guang Zuo,Xiao-yu Zhang, et al. Impact wear properties of dissimilar joints between bainitic frogs and pearlite rails[J]. Journal of Iron and Steel Research International, 2024, 31(1): 275-287.
|
|
|
|
| [1] |
Tian-yu Zhang, Ling-yu Wang, Yu Wang, Jun Hu, Hong-shuang Di, Wei Xu. Effect of low-temperature ausforming on bainitic transformation and mechanical properties in ultrahigh-strength bainitic steel[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(09): 1843-1853. |
| [2] |
Man Liu, Jun-yu Tian, Feng Cai, Cheng-gang Pan, Guang Xu. Chro-austempering treatment of a medium-carbon high-strength bainitic steel[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2023, 30(02): 317-327. |
| [3] |
Xin-pan Yu, Hui-bin Wu, Yang Gu, Rui Yuan, You-you Zhang, Yu-hui Feng. Effect of prior martensite on bainite transformation and microstructure of high-carbon nano-bainitic steel[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(4): 647-654. |
| [4] |
Run-feng Peng, Min Zhang, Yu-hang Li, Yue-long Yu, Ying-chun Guan, Zhun-li Tan. Microstructural development and wear properties analyses of Fe-based coatings on bainitic steel by laser cladding[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(4): 687-697. |
| [5] |
Zhi-bin Zheng, Jun Long, Yi Guo, Hui Li, Kai-hong Zheng, Yan-xin Qiao. Corrosion and impact–abrasion–corrosion behaviors of quenching– tempering martensitic Fe–Cr alloy steels[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(11): 1853-1863. |
| [6] |
Ya-qiang Tian, Zhong-qian Cao, Wang Li, Hong-bo Pan, Xiao-ping Zheng, Jin-ying Song, Ying-li Wei, Lian-sheng Chen. Effect of intercritical deformation on tensile performanceof a low?carbon Si–Mn steel processed by quenching and bainitic partitioning[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(2): 208-216. |
|
|
|
|
2024, Vol. 31 
