镁对热浸镀锌铝合金层耐蚀性的影响
Influence of Mg on Corrosion Resistance of Hot-dip Zn-Al Alloy Coating
摘 要
采用热浸镀法在一定的助镀条件下制备了不同镁含量的Zn-Al-Mg合金镀层。利用扫描电镜、能谱仪及X射线衍射仪(XRD)分析了镀层的组织结构; 采用NaCl溶液全浸试验和电化学试验评价镀层的耐蚀性能。结果表明，在一定范围内，随着镀液中镁含量的增加，镀层组织更加均匀、致密，镀层耐蚀性能也随之提高; 当镀液中加入0.7%镁时制备的镀层耐蚀性最好，超过0.7%时镀层的耐蚀性能反而下降。
Zn-Al-Mg合金镀层
耐蚀性
hot dip
Zn-Al-Mg alloy
corrosion resistance
Abstract
Zn-Al-Mg alloy coatings with different magnesium contents were prepared by hot dip method. Microstructures and compositions of the coatings were studied by SEM, EDS and XRD. NaCl solution immersion test, electrochemical thermal shock test were used to study the corrosion resistance of the coatings. The results show that the increasing of Mg contents can make the coating morphology more uniform and dense, improve the corrosion resistance in a certain range. Zn-Al-Mg alloy coatings with Zn-5% Mg-0.7%, showed the best corrosion resistance, the corrosion resistance became worse when the Mg content was beyond 0.7%.
中图分类号 TG174 TM344.1
所属栏目 试验研究
基金项目 2011年度江苏省企业研究生工作站项目
收稿日期 2012/11/2
修改稿日期
网络出版日期
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备注何斐,硕士研究生,
引用该论文: HE Fei,LUO Xin-yi,HU Yu-bing,LING Juan. Influence of Mg on Corrosion Resistance of Hot-dip Zn-Al Alloy Coating[J]. Corrosion & Protection, 2013, 34(8): 686
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参考文献
【1】Chen Z W,Kennon N F,See J B,et al. Technical and other developments in batch hot-dip galvanizing[J]. Journal of Material,1992,44(1):22-26.
【2】Shibli S M A,Manu R,Dilimon V S. Effect of nickel-rich barrier layer on improvement of hot-dip zinc coating[J]. Applied Surface Science,2005,245(1/4):179-185.
【3】李艳春,汪红,张丛春,等. 不同基底上镍微结构镀层结合强度的研究[J]. 功能材料,2012(21):33-36.
【4】Boshkov N,Petrov K,Raichevski G. Corrosion behavior and protective ability of multilayer galvanic coatings of Zn and Zn-Mn alloys in sulfate containing medium[J]. Surface and Coatings Technology,2006,200(20/21):5995-6001.
【5】Kamachi Mudali U,Rangaragan S. Corrosion prevention and control[M]. Alpha:Alpha Science lnternational,2009.
【6】周有福. 极好的耐腐蚀Zn-Al-Mg-Si合金热浸镀锌薄钢板[J]. 武钢技术,2009,42(2):56-57.
【7】Monojit Dutta,Arup K H,Shiv B S. Morphology and properties of hot dip Zn-Mg and Zn-Mg-Al alloy coatings on steel sheet[J]. Surface and Coatings Technology,2010,205(7):2578-2584.
【8】仲海峰,刘邦津. 国外钢板热镀锌技术进展[J]. 腐蚀与防护,2002,23(11):474-478.
【9】孙瑛. 各种耐大气腐蚀金属热镀层综述[J]. 金属制品,1986,12(3):18-21.
【10】许红,冀英杰. 热浸镀新型Zn-Al-Mg合金镀层耐蚀性能研究[J]. 中国科技信息,2011(7):34-36.
【11】Shih H C,Hsu J W,Sun C N,et al. The lifetime assessment of hot-dip 5% Al-Zn coatings in chloride environments[J]. Surface & Coatings Technology,2002,150(1):70-75.
【12】Souto R M,Fernandez-Merida L,Gonzalez S,et al. Comparative EIS study of different Zn-based intermediate metallic layers in coil-coated steels[J]. Corrosion Science,2006,48(5):1182-1192.
【2】Shibli S M A,Manu R,Dilimon V S. Effect of nickel-rich barrier layer on improvement of hot-dip zinc coating[J]. Applied Surface Science,2005,245(1/4):179-185.
【3】李艳春,汪红,张丛春,等. 不同基底上镍微结构镀层结合强度的研究[J]. 功能材料,2012(21):33-36.
【4】Boshkov N,Petrov K,Raichevski G. Corrosion behavior and protective ability of multilayer galvanic coatings of Zn and Zn-Mn alloys in sulfate containing medium[J]. Surface and Coatings Technology,2006,200(20/21):5995-6001.
【5】Kamachi Mudali U,Rangaragan S. Corrosion prevention and control[M]. Alpha:Alpha Science lnternational,2009.
【6】周有福. 极好的耐腐蚀Zn-Al-Mg-Si合金热浸镀锌薄钢板[J]. 武钢技术,2009,42(2):56-57.
【7】Monojit Dutta,Arup K H,Shiv B S. Morphology and properties of hot dip Zn-Mg and Zn-Mg-Al alloy coatings on steel sheet[J]. Surface and Coatings Technology,2010,205(7):2578-2584.
【8】仲海峰,刘邦津. 国外钢板热镀锌技术进展[J]. 腐蚀与防护,2002,23(11):474-478.
【9】孙瑛. 各种耐大气腐蚀金属热镀层综述[J]. 金属制品,1986,12(3):18-21.
【10】许红,冀英杰. 热浸镀新型Zn-Al-Mg合金镀层耐蚀性能研究[J]. 中国科技信息,2011(7):34-36.
【11】Shih H C,Hsu J W,Sun C N,et al. The lifetime assessment of hot-dip 5% Al-Zn coatings in chloride environments[J]. Surface & Coatings Technology,2002,150(1):70-75.
【12】Souto R M,Fernandez-Merida L,Gonzalez S,et al. Comparative EIS study of different Zn-based intermediate metallic layers in coil-coated steels[J]. Corrosion Science,2006,48(5):1182-1192.
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