| 徐安桃,周慧,封会娟,魏骏逸.车辆装备涂层局部微小破损对防护性能的影响研究[J].装备环境工程,2021,18(2):73-77. XU An-tao,ZHOU Hui,FENG Hui-juan,WEI Jun-yi.Research on the Effect of Local Minor Damage of Vehicle Equipment Coating on Protection Performance[J].Equipment Environmental Engineering,2021,18(2):73-77. |
| 车辆装备涂层局部微小破损对防护性能的影响研究 |
| Research on the Effect of Local Minor Damage of Vehicle Equipment Coating on Protection Performance |
| 投稿时间：2020-07-28 修订日期：2020-08-31 |
| DOI：10.7643/issn.1672-9242.2021.02.013 |
| 中文关键词: 破损涂层 军绿有机涂层 腐蚀 EIS中图分类号:TG174.4 文献标识码:A 文章编号:1672-9242(2021)02-0073-05 |
| 英文关键词:damaged coating military green organic coating corrosion EIS |
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| Author | Institution |
| XU An-tao | Military Vehicle Engineering Department,Tianjin 300161, China |
| ZHOU Hui | Military Vehicle Engineering Department,Tianjin 300161, China |
| FENG Hui-juan | Military Vehicle Engineering Department,Tianjin 300161, China |
| WEI Jun-yi | Postgraduate Training Brigade, Fifth Team of Cadets, Army Military Transportation University, Tianjin 300161, China |
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| 中文摘要: |
| 目的 探究车辆装备有机涂层在微小破损之后性能的变化情况，并通过完好涂层防护能力的对比分析，间接预测微小破损涂层的服役寿命。方法 利用某型现役装备涂层作为试验样本，进行综合环境下的循环加速腐蚀试验，最后利用EIS分析实验数据，分析两者防护性能的差别。结果 完好涂层与破损涂层的防护性能均出现了大幅度的下降，两者在经过10个周期的腐蚀试验之后，都失去了防护能力，出现了大面积锈迹。完好涂层的低频阻抗模值|Z|0.1 Hz在试验初期处于1010 Ω.cm2数量级，最后下降到106 Ω.cm2以下；初始状态破损涂层的低频阻抗模值|Z|0.1 Hz为1.2×105 Ω.cm2，9个腐蚀周期之后下降至5.7×103 Ω.cm2，下降了2个数量级。结论 破损涂层在腐蚀初期更多地表现出电容性质，其试验初期的防护能力大约相当于完好涂层经历6~7次循环试验之后的防护能力，破损部分随着腐蚀周期的变化呈现“钝化—溶解—再钝化—再溶解”的周期性变化规律。 |
| 英文摘要: |
| Toexplore the changes in the performance of organic coatings on military vehicles after minor breakage and indirectly predict the service life of micro-damaged coatings through the comparative analysis of the protective ability of intact coatings, this paper uses a certain type of active equipment coating as a test sample to carry out the cyclic accelerated corrosion test under the integrated environment. Finally, EIS is used to analyze the experimental data on the difference of the protective performance. As a result, both the protective properties of the intact coating and the damaged coating show a significant drop. Both of them lose their protective ability after 10 cycles of corrosion test, and a large area of rust appears. The low-frequency impedance modulus |Z|0.1 Hz of the intact coating is in the order of 1010 Ω.cm2 at the beginning of the test and finally falls below 106 Ω.cm2. The low-frequency impedance modulus of the damaged coating |Z|0.1 Hz is 1.2×105 Ω.cm2 for the initial state, and after the 9 corroding cycles to 5.7×103 Ω.cm2, it is decreased by 2 orders of magnitude. Damaged coating exhibits more capacitive properties at the beginning of the corrosion. Its initial protective effect is approximately equivalent to the 6~7th cycle test of the intact coating. The damaged part exhibits the periodic variation of “passivation-dissolution-repassivation-redissolution”. |
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