Academic Journal
Effect of normalisation on the microstructure and wear resistance of U75V rail welded joints in desert service environments
| العنوان: | Effect of normalisation on the microstructure and wear resistance of U75V rail welded joints in desert service environments |
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| المؤلفون: | Xi Zhang, Tingting Liao, Xing Liu, Xiaoya Shen, Ruotong Tian, XinYi Yang, Biao Guo, Qibing Lv, Guoqing Gou, Xiao Huang |
| المصدر: | Journal of Materials Research and Technology, Vol 35, Iss , Pp 2337-2345 (2025) |
| بيانات النشر: | Elsevier, 2025. |
| سنة النشر: | 2025 |
| المجموعة: | LCC:Mining engineering. Metallurgy |
| مصطلحات موضوعية: | U75V rail, Welded joint, High-temperature friction, Normalising, Mining engineering. Metallurgy, TN1-997 |
| الوصف: | To elucidate the wear mechanism of rail steel welded joints in desert environments, we investigated the high-temperature friction and wear performance of U75V flash–butt welded rails across weld joints (normalised and non-normalised) as well as the base material at temperatures of 60, 200, and 300 °C. Owing to debris accumulation and the oxidised lubricating layer produced by the frictional process, all specimens exhibited elevated wear volumes accompanied by reduced friction coefficients with increasing temperature. The wear mechanism transitioned from adhesive wear to intense adhesive wear and ultimately delamination wear. Notably, owing to an optimised grain structure, the normalised joint demonstrated superior resistance against wear compared to its non-normalised counterpart under high-temperature conditions. These findings are anticipated to enhance rail quality within desert environments. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2238-7854 25544519 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2238785425001292; https://doaj.org/toc/2238-7854 |
| DOI: | 10.1016/j.jmrt.2025.01.128 |
| URL الوصول: | https://doaj.org/article/cc75021ea25544519208dc36ffeabda0 |
| رقم الانضمام: | edsdoj.75021ea25544519208dc36ffeabda0 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 22387854 25544519 |
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| DOI: | 10.1016/j.jmrt.2025.01.128 |