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基于MIV的碳钢大气腐蚀速率影响因子权重分析

杨斌 李敬洋 文磊

杨斌, 李敬洋, 文磊等 . 基于MIV的碳钢大气腐蚀速率影响因子权重分析[J]. 北京航空航天大学学报, 2018, 44(8): 1620-1628. doi: 10.13700/j.bh.1001-5965.2017.0638
引用本文: 杨斌, 李敬洋, 文磊等 . 基于MIV的碳钢大气腐蚀速率影响因子权重分析[J]. 北京航空航天大学学报, 2018, 44(8): 1620-1628. doi: 10.13700/j.bh.1001-5965.2017.0638
YANG Bin, LI Jingyang, WEN Leiet al. Impact factor weight analysis of atmospheric corrosion rate of carbon steel based on MIV[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(8): 1620-1628. doi: 10.13700/j.bh.1001-5965.2017.0638(in Chinese)
Citation: YANG Bin, LI Jingyang, WEN Leiet al. Impact factor weight analysis of atmospheric corrosion rate of carbon steel based on MIV[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(8): 1620-1628. doi: 10.13700/j.bh.1001-5965.2017.0638(in Chinese)

基于MIV的碳钢大气腐蚀速率影响因子权重分析

doi: 10.13700/j.bh.1001-5965.2017.0638
基金项目: 

国家重点研发计划 SQ2017YFGX010042-5

详细信息
    作者简介:

    杨斌  男, 博士, 副研究员。主要研究方向:结构材料失效监检测与分析

    李敬洋  男, 硕士研究生。主要研究方向:材料疲劳失效分析

    文磊  男, 博士, 副研究员。主要研究方向:金属腐蚀与防护

    通讯作者:

    杨斌, E-mail: binyang@ustb.edu.cn

  • 中图分类号: TG172.3

Impact factor weight analysis of atmospheric corrosion rate of carbon steel based on MIV

Funds: 

National Key R & D Program of China SQ2017YFGX010042-5

More Information
  • 摘要:

    通过平均影响值(MIV)影响因子权重分析算法,以碳钢Q235、Ste355、St12和Q450腐蚀速率的暴露时间、气候因素和环境因素数据为依据,以|MIV|值为评价依据,定量分析15种影响因子(暴露时间、平均温度、平均相对湿度、日照时数、降水量、平均风速、海盐粒子浓度、SO2、HCl、NO2、H2S、硫酸盐化速率、NH3、降尘量-非水溶性、降尘量-水溶性)对碳钢腐蚀速率影响的权重大小。结果表明: 当MIV调节率从5%逐步递增至25%时,同种影响因子对腐蚀速率的影响权重变化不大,但4种碳钢对各影响因子的敏感度略有不同;气候因素对腐蚀速率影响最大,其次为暴露时间,环境因素中SO2和降尘量对腐蚀速率影响较大;平均相对湿度、日照时数、平均温度是影响腐蚀速率最主要的3个因子。

     

  • 图 1  MIV算法原理

    Figure 1.  Principle of MIV algorithm

    图 2  不同调节率下Q235影响因子|MIV|值的变化曲线及标准差柱状图

    Figure 2.  |MIV| values variation curves and standard deviation histogram of impact factors of Q235 with different regulation rates

    图 3  不同调节率下Q450腐蚀影响因子|MIV|值的变化曲线及标准差柱状图

    Figure 3.  |MIV| values variation curves and standard deviation histogram of corrosion impact factors of Q450 with different regulation rates

    图 4  不同调节率下St12腐蚀影响因子|MIV|值的变化曲线及标准差柱状图

    Figure 4.  |MIV| values variation curves and standard deviation histogram of corrosion impact factors of St12 with different regulation rates

    图 5  不同调节率下Ste355腐蚀影响因子|MIV|值的变化曲线及标准差柱状图

    Figure 5.  |MIV| values variation curves and standard deviation histogram of corrosion impact factors of Ste355 with different regulation rates

    图 6  调节率为15%时碳钢影响因子|MIV|值变化曲线及误差棒图

    Figure 6.  |MIV| values variation curves and error bar chart of carbon steel impact factors with 15% regulation rate

    图 7  不同碳钢各影响因子|MIV|值对比

    Figure 7.  Comparison of impact factor |MIV| values among different carbon steels

    表  1  腐蚀速率影响及评价因子数据

    Table  1.   Impact and evaluation factor data of corrosion rate

    评价因子数值
    实验时间/a1
    平均温度/℃12.750
    平均相对湿度/%50.151
    日照时数/h85.642
    降水量/mm50.879
    平均风速/(m·s-1)2.025
    瞬时法SO2/(mg·cm-3)0.001
    瞬时法HCl/(mg·cm-3)0.052
    连续法NO2/(mg·(100 m2·d)-1)0.106
    连续法H2S/(mg·(100 m2·d)-1)0.056
    连续法硫酸盐化速率/(mg·(100 m2·d)-1)0.320
    连续法NH3 /(mg·(100 m2·d)-1)0.054
    连续法海盐粒子浓度/(mg·(100 m2·d)-1)0.010
    自然降尘量-非水溶性/(g·(cm2·mol·L-1)-1)4.371
    自然降尘量-水溶性/(g·(cm2·mol·L-1)-1)1.496
    下载: 导出CSV

    表  2  不同调节率下Q235的各影响因子|MIV|值

    Table  2.   |MIV| values of impact factors of Q235 with different regulation rates

    MIV调节率/%ABCDEFGHIJKLMNO
    50.2280.4070.6460.6340.4770.0850.0230.1140.0440.0690.0540.0420.0530.2300.152
    100.2200.4510.6700.5710.4020.1230.0410.1180.0700.0900.0880.0560.0780.2530.157
    150.2430.4550.6690.6260.4190.1210.0290.1250.0550.0740.0730.0450.0460.2640.168
    200.2300.4620.6980.6270.4340.1080.0400.1430.0590.0810.0770.0370.0590.2510.167
    250.2020.3850.7080.6220.4110.0960.0350.1510.0580.0850.0790.0390.0580.2560.128
    注: A为暴露时间; B为平均温度; C为平均相对湿度; D为日照时数; E为降水量; F为平均风速; G为连续法海盐粒子浓度; H为瞬时法SO2; I为瞬时法HCl; J为连续法NO2; K为连续法H2S; L为连续法硫酸盐化速率; M为连续法NH3; N为自然降尘量-非水溶性; O为自然降尘量-水溶性。
    下载: 导出CSV

    表  3  不同调节率下Q450的各影响因子|MIV|值

    Table  3.   |MIV| values of impact factors of Q450 with different regulation rates

    MIV调节率/%ABCDEFGHIJKLMNO
    50.2790.5340.6850.4870.4270.1400.0440.1220.0780.1130.0800.0430.0320.1890.231
    100.3400.5580.7120.5280.4270.1720.0430.1280.0730.1200.0660.0640.0450.2110.222
    150.2850.5140.6630.5700.4420.1590.0390.1300.0700.1130.0680.0530.0340.2040.210
    200.3060.5100.7140.5520.4030.1370.0350.1420.0780.1130.0720.0420.0370.2360.209
    250.2970.5520.7020.5160.4390.1860.0440.1490.0850.1310.0880.0680.0370.2430.197
    下载: 导出CSV

    表  4  不同调节率下St12的各影响因子|MIV|值

    Table  4.   |MIV| values of impact factors of St12 with different regulation rates

    MIV调节率/%ABCDEFGHIJKLMNO
    50.2280.4480.7550.5600.4270.1240.0500.1120.0570.1020.0650.0310.0260.1620.174
    100.2440.4770.7490.5400.4410.1280.0580.1180.0610.1070.0910.0340.0290.1700.188
    150.2280.5520.7190.5500.3970.1340.0470.1200.0680.1130.0850.0300.0240.1790.184
    200.2160.4570.7580.5460.3360.1260.0450.1240.0640.1080.0760.0170.0390.1800.153
    250.2240.4740.7310.5380.4370.1200.0290.1300.0450.0960.0700.0420.0290.1830.191
    下载: 导出CSV

    表  5  不同调节率下Ste355各影响因子|MIV|值

    Table  5.   |MIV| values of impact factors of Ste355 with different regulation rates

    MIV调节率/%ABCDEFGHIJKLMNO
    50.2860.4760.6810.5230.4970.1530.0320.1210.0580.1000.0620.0400.0300.1570.148
    100.3040.4730.6920.5510.4250.1390.0310.1280.0630.1210.0730.0490.0280.1900.181
    150.3610.4950.7200.5350.4600.1830.0450.1350.0910.1200.0760.0590.0360.2060.186
    200.3040.5490.7320.5620.4170.1520.0420.1310.0820.1210.0800.0380.0300.1910.199
    250.3340.5980.7600.5300.4210.1770.0470.1500.1040.1050.0830.0700.0390.1930.234
    下载: 导出CSV
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  • 收稿日期:  2017-10-19
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