| 片状Al-Zn-Si合金粉的析氢行为与抑制剂研究 |
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| 引用本文： | 蒋穹,缪强,丁祥,魏小昕.片状Al-Zn-Si合金粉的析氢行为与抑制剂研究[J].中国腐蚀与防护学报,2013,33(1):61-69. |
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| 作者姓名： | 蒋穹 缪强 丁祥 魏小昕 |
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| 作者单位： | 1. 南京航空航天大学材料科学与技术学院 南京 211106; |
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| 基金项目： | 江苏省普通高校研究生科研创新计划(CXLX12_0149);江苏省科技成果转化专项基金(BA2011029);江苏省产学研联合创新资金(BY2011101)资助 |
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| 摘 要： | 通过析氢实验考察了不同锌与铝析氢抑制剂对Al-Zn-Si合金片粉在10 mass%乙二醇单丁醚水溶液的析氢抑制作用，并用傅里叶红外测试、扫描电镜和XRD等手段对合金粉末试样进行分析和表征。结果表明四丁基溴化铵(TBAB)和羟乙叉基二膦酸(HEDP)对铝锌硅合金粉在10 mass%的乙二醇单丁醚水溶液中的析氢有较好的抑制效果；当TBAB/Al-Zn-Si=50(mass%)、HEDP/Al-Zn-Si=100(mass%)时缓蚀效果最为理想，缓蚀效率可分别达到78.99%和62.77%；结合电位-pH图对合金粉在碱性介质的微电偶腐蚀特征给出了解释，最后初步探讨了析氢抑制剂缓蚀机理。
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| 关 键 词： | Al-Zn-Si片状合金粉末 析氢 腐蚀抑制剂 电位-pH图 微电偶腐蚀 |
Behavior of Hydrogen Evolution and Inhibitors for Al-Zn-Si Alloy Flakes |
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| JIANG Qiong,MIAO Qiang,DING Xiang,WEI Xiaoxin.Behavior of Hydrogen Evolution and Inhibitors for Al-Zn-Si Alloy Flakes[J].Journal of Chinese Society For Corrosion and Protection,2013,33(1):61-69. |
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| Authors: | JIANG Qiong MIAO Qiang DING Xiang WEI Xiaoxin |
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| Affiliation: | 1.College of Materials Science & Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China; 2.Nanjing Iveco Automobile Co.,Ltd.Axle Branch,Nanjing 210028,China; 3.Jiangsu Linlong New Materials Co.,Ltd,Wuxi 214183,China |
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| Abstract: | The behavior of hydrogen evolution was determined by gas volumetric measurement over a period of 72 h at 45 ℃. The inhibiting effectiveness of ten kinds of corrosion inhibitors on Al-Zn-Si alloy powders in a solution of water with 10 mass% C6H14O2 was compared. The investigations of Al-Zn-Si samples were carried out by use of IR, SEM and XRD. It has been shown that the hydrogen evolution of flake Al-Zn-Si powder can be inhibited by the addition of TBAB and HEDP with an optimal concentration of TBAB/Al-Zn-Si=50(mass%) and HEDP/Al-Zn-Si=100(mass%) in 2-butoxyothanol aqueous solutions the inhibition efficiency can reach 78.99% and 62.77%, respectively. At last, Pourbaix diagram was used to analyse the microgalvanic corrosion of Al-Zn-Si alloy powder in aqueous media, and the inhibition mechanism of the inhibitors TBAB was discussed briefly. |
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