| 张登,李孟思.基于双参数威布尔分布的高强度铝合金材料腐蚀损伤分布动力学规律研究[J].装备环境工程,2019,16(7):27-31. ZHANG Deng,LI Meng-si.Dynamic Law of Corrosion Damage Distribution of High Strength Aluminum Alloy Based on Two-parameter Weibull Distribution[J].Equipment Environmental Engineering,2019,16(7):27-31. |
| 基于双参数威布尔分布的高强度铝合金材料腐蚀损伤分布动力学规律研究 |
| Dynamic Law of Corrosion Damage Distribution of High Strength Aluminum Alloy Based on Two-parameter Weibull Distribution |
| 投稿时间：2019-01-17 修订日期：2019-07-25 |
| DOI：10.7643/ issn.1672-9242.2019.07.006 |
| 中文关键词: 铝合金 双参数威布尔分布 腐蚀损伤 |
| 英文关键词:aluminum alloy two-parameter Weibull distribution corrosion damage |
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| 中文摘要: |
| 目的 研究高强度铝合金材料腐蚀损伤分布的动力学规律。方法 通过统计高强度铝合金材料的蚀坑深度和直径，采用双参数威布尔分布进行拟合，提出以双参数威布尔分布中的两个参数α、β作为高强度铝合金材料腐蚀损伤分布的表征量，建立α、β随腐蚀时间增长的多种数学模型。结果 α随腐蚀时间的增长而减小，β随腐蚀时间的增长而增大，并且分布参数均能很好地符合一阶指数函数模型。结论 与实际蚀坑分布增长物理现象比较，α、β的变化趋势能够揭示出蚀坑分布随时间增长的变化过程，并且腐蚀损伤分布动力学规律能很好地符合一阶指数函数模型。 |
| 英文摘要: |
| Objective To study the distribution kinetics of corrosion damage in high strength aluminum alloy. Methods By calculating the corrosion pit depth and diameter of high-strength aluminum alloy materials and fitting the two-parameter Weibull distribution, two parameters α and β in the two-parameter Weibull distribution were proposed as the characterization quantities of the corrosion damage distribution of high-strength aluminum alloy materials, and a variety of mathematical models of α and β with the increase of corrosion time were established. Results α decreased with the increase of corrosion time, while β increased with the increase of corrosion time, and the distribution parameters can well conform to the first-order exponential function model. Conclusion Compared with the physical phenomenon of actual pit distribution growth, the change trend of α and β can reveal the change process of pit distribution growth with time, and the dynamic law of corrosion damage distribution can well conform to the first-order exponential function model. |
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