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Simulation of Uniform Corrosion Process of U71Mn Hot-rolled Rail Based on Cellular Automata
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Yunlai Sun1, Zhenghong Fu1, Yanan Hu1, Yuxuan Liu1, Zefeng Wen2, Qianhua Kan1, **
Chinese Journal of Solid Mechanics | 2024, 45(5) : 565 - 575
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Chinese Journal of Solid Mechanics | 2024, 45(5): 565-575
• Research Paper •
Simulation of Uniform Corrosion Process of U71Mn Hot-rolled Rail Based on Cellular Automata
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Yunlai Sun1, Zhenghong Fu1, Yanan Hu1, Yuxuan Liu1, Zefeng Wen2, Qianhua Kan1, **
Affiliations
  • 1Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Aerospace Engineering, Southwest Jiaotong University, Chengdu, 611756
  • 2National Key Laboratory of Rail Transit Transportation system, Southwest Jiaotong University, Chengdu, 610031
Published: 2024-10-25 doi: 10.19636/j.cnki.cjsm42-1250/o3.2024.027
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The impact of environmental corrosion on rail service operations poses a direct safety threat. Therefore, the quantitative characterization of rail corrosion damage is of great significance for evaluating rail reliability. Uniform corrosion experiments on U71Mn hot-rolled rail samples in a 3.5 wt. % NaCl solution at room temperature were first carried out. Changes in the diameters of two samples with corrosion time were measured. According to the experimental results, the corrosion mechanism of rail samples in the 3.5 wt. % Nacl solution was analyzed. A corrosion model employing cellular automata was developed to simulate the uniform corrosion behavior of rail samples in the NaCl solution. The corrosion rate was quantified by tracking sample diameter changes through the cellular automaton simulation over varying corrosion time. A unified prediction formula for different sample diameters with corrosion time was established. Results revealed an average relative error of 8.7% between predicted and measured data, indicating the efficacy of cellular automata in accurately simulating the uniform corrosion process of U71Mn hot-rolled rail samples.

U71Mn hot-rolled rail  /  uniform corrosion  /  cellular automata  /  corrosion prediction
Yunlai Sun, Zhenghong Fu, Yanan Hu, Yuxuan Liu, Zefeng Wen, Qianhua Kan. Simulation of Uniform Corrosion Process of U71Mn Hot-rolled Rail Based on Cellular Automata[J]. Chinese Journal of Solid Mechanics, 2024 , 45 (5) : 565 -575 . DOI: 10.19636/j.cnki.cjsm42-1250/o3.2024.027
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Year 2024 volume 45 Issue 5
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doi: 10.19636/j.cnki.cjsm42-1250/o3.2024.027
  • Receive Date：2024-02-29
  • Online Date：2026-04-01
  • Published：2024-10-25
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  • Received：2024-02-29
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Affiliations
    1Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Aerospace Engineering, Southwest Jiaotong University, Chengdu, 611756
    2National Key Laboratory of Rail Transit Transportation system, Southwest Jiaotong University, Chengdu, 610031
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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