魏雪,王震,殷晓,郑召健,宋巍巍,王化娥.电偶连接件加速腐蚀环境下腐蚀状态模拟分析[J].表面技术,2025,54(8):136-144.
WEI Xue,WANG Zhen,YIN Xiao,ZHENG Zhaojian,SONG Weiwei,WANG Huae.Simulation Analysis of Corrosion State of Electric Couple Connectors under Accelerated Corrosion Environment[J].Surface Technology,2025,54(8):136-144 |
| 电偶连接件加速腐蚀环境下腐蚀状态模拟分析 |
| Simulation Analysis of Corrosion State of Electric Couple Connectors under Accelerated Corrosion Environment |
| 投稿时间：2024-06-27 修订日期：2024-11-25 |
| DOI：10.16490/j.cnki.issn.1001-3660.2025.08.012 |
| 中文关键词: 铝合金 电偶腐蚀 腐蚀仿真 阳极氧化 盐雾试验 缝隙腐蚀 |
| 英文关键词:aluminum alloy galvanic corrosion corrosion simulation anodizing salt spray test crevice corrosion |
| 基金项目: |
| 作者 | 单位 |
| 魏雪 | 中国重型汽车集团有限公司，济南 250002 |
| 王震 | 中国重型汽车集团有限公司，济南 250002 |
| 殷晓 | 中国重型汽车集团有限公司，济南 250002 |
| 郑召健 | 中国重型汽车集团有限公司，济南 250002 |
| 宋巍巍 | 中国重型汽车集团有限公司，济南 250002 |
| 王化娥 | 中国重型汽车集团有限公司，济南 250002 |
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| Author | Institution |
| WEI Xue | China National Heavy Duty Truck Group Co., Ltd., Jinan 250002, China |
| WANG Zhen | China National Heavy Duty Truck Group Co., Ltd., Jinan 250002, China |
| YIN Xiao | China National Heavy Duty Truck Group Co., Ltd., Jinan 250002, China |
| ZHENG Zhaojian | China National Heavy Duty Truck Group Co., Ltd., Jinan 250002, China |
| SONG Weiwei | China National Heavy Duty Truck Group Co., Ltd., Jinan 250002, China |
| WANG Huae | China National Heavy Duty Truck Group Co., Ltd., Jinan 250002, China |
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| 中文摘要: |
| 目的 利用腐蚀仿真分析技术，分析阳极氧化与搭接方式对材料耐腐蚀性能的影响，并结合真实的盐雾试验对仿真分析结果进行验证。方法 使用腐蚀仿真分析软件CorrosionMaster对异种金属搭接件的腐蚀情况进行分析。通过对比2种搭接方式(0 mm、1 mm间隙)受腐蚀的程度，进一步确定搭接件的腐蚀影响区域，以及各区域的腐蚀程度和腐蚀类型。结果 仿真分析结果以腐蚀仿真云图的方式来显示不同位置的腐蚀速率、腐蚀损耗、电流密度、电位等信息。经过8 d的仿真模拟，结果显示搭接件0 mm间隙时受腐蚀影响区域主要为搭接面以及搭接缝边缘，其中6016搭接面的腐蚀速率最高。并通过盐雾试验对铝合金和碳钢的耐腐蚀性能进行了对比。结论 腐蚀仿真分析结果与盐雾试验结果基本一致，仿真方法在腐蚀演变规律的研究和定量分析上具有巨大优势，相比传统试验，仿真方法在保证准确的情况下可显著提高腐蚀评估效率，降低测试周期。铝合金6016阳极氧化后，耐腐蚀能力明显提高。6016阳极氧化、6016与08F冷轧搭接时，在无间隙条件下，主要受电偶腐蚀、缝隙腐蚀的影响，受影响的区域主要为6016阳极氧化或6016搭接面，并且均匀腐蚀的影响程度要远低于电偶腐蚀、缝隙腐蚀。 |
| 英文摘要: |
| To analyze the effect of anodic oxidation on the corrosion resistance of materials by corrosion simulation analysis technology, the simulation results are verified by real salt spray test. The method is to construct the lap model of aluminum alloy and carbon steel through 3D modeling, the corrosion simulation analysis software is used to simulate and analyze the galvanic corrosion, uniform corrosion and crevice corrosion of lap joints. The anodizing process of aluminum alloy is sulfuric acid anodizing, which is a process of forming an oxide film on aluminum products (anode) under the action of external current in sulfuric acid electrolyte and specific process conditions. Due to the effect of the construction technology and the film forming effect of the material surface, no discussion is conducted. By comparing the degree of corrosion by the two bonding methods (0 mm gap and 1 mm gap), the areas affected by corrosion and the degree and type of corrosion in each area are further determined. Corrosion rate, corrosion loss, current density, potential and other information at different locations are displayed by means of corrosion simulation cloud map. After 8 days of simulation, the analysis cloud map is obtained successively. Among them, 6016 has the highest corrosion rate and corrosion loss. The results of simulation analysis are compared and verified by salt spray test, and the corrosion resistance of aluminum alloy and carbon steel is compared. The results show that the areas affected by corrosion are mainly the lap surface and the edge of the lap joint when the gap is 0 mm. At 0 mm gap, 6016 and 6016 are anodized and 08F cold rolling salt spray test is carried out after 8 days. 08F cold rolling leads to slight corrosion and the corrosion of 6016 and 6016 anodized lap surfaces is deeper, the lap edge has a certain corrosion depth and the 6016 and 6016 anodized unbonded area has no obvious corrosion. At 1 mm gap, no obvious corrosion is found after 8 days of 6016 anodic oxidation, 6016 and 08F cold rolling salt spray test. The corrosion resistance of aluminum alloy 6016 is obviously improved after anodizing. When alloy 6016 anodized and 6016 and 08F are cold rolled, under the condition of no gap, the test part is mainly affected by galvanic corrosion and crevice corrosion, the affected areas are mainly 6016 anodized or 6016 lap surfaces and the effect of uniform corrosion is much lower than that of galvanic corrosion and crevice corrosion. The results of corrosion simulation analysis with CorrosionMaster software are basically consistent with the results of real salt spray test. Under the condition of 0 mm gap, the metal material is obviously affected by gap corrosion. Therefore, in the actual situation, the real corrosion of the material and the corrosion simulation analysis conclusion should be viewed objectively. |
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