AlCl3-NaCl熔盐扩散增强纯镁耐腐蚀性的研究
Enhancement of Corrosion Resistance of Pure Magnesium by Diffusion in Molten Salt AlCl3-NaCl
摘 要
对纯镁表面采用AlCl3-NaCl熔盐扩散处理,金相和SEM观察结果显示镁表面生成了厚度为10 um左右的均匀合金层,XRD测试表明该合金层由单质镁和镁铝金属间化合物Mg17Al12、ε-MgAl、β-MgAl组成,用电极电位曲线、交流阻抗分析以及极化曲线比较熔盐扩散处理前后镁的耐腐蚀性能,结果显示熔盐扩散处理后镁的电极电位显著提高,腐蚀速率降低,较好地提高了镁的耐腐蚀性能.
熔盐扩散
合金层
耐腐蚀性
magnesium
molten salt diffusion
alloy coating
corrosion resistance
Abstract
The surface of pure magnesium was treated with AlCl3-NaCl molten salt diffusion method at 573K for 8 h.The metallurgical microscopy and SEM observation showed that an intermetallic compound layer was formed uniformly on Mg surface and its thickness was about 10 μm.The XRD analysis indicated that the layer was mainly consisted of Mg and Mg-Al intermetallic compounds such as Mg17,ε-MgAl and β-MgAl.The electrochemical tests,including electrode potential,EIS and polarization curves,indicated that the intermetallic compound layer had better corrosion resistance than the untreated specimen.
中图分类号 TG146.2 TG174.4
所属栏目 试验研究
基金项目 高等学校科技创新工程重大项目培育资金项目(707025)
收稿日期 2008/2/4
修改稿日期 2008/3/12
网络出版日期
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引用该论文: TANG Zhi-xin,WU Ya-ting,LIU Lei,HE Mei-feng,HU Wen-bin. Enhancement of Corrosion Resistance of Pure Magnesium by Diffusion in Molten Salt AlCl3-NaCl[J]. Corrosion & Protection, 2009, 30(2): 87～89
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参考文献
【1】李卫平,朱立群.镁及其合金表面防护性涂层国外研究进展[J].材料保护,2005,38(2):42.
【2】王雪敏,曾小勤,吴国松,等.磁控溅射在镁合金表面处理中的应用[J].铸造技术,2006,27(4):412-415.
【3】霍宏伟,王福会,李瑛,等.Al扩散涂层对AZ91D Mg合金耐腐蚀性能的影响[J].腐蚀科学与防护技术,2001,13:484-486.
【4】Ming Zhao,Shusen Wu,Ping An,et al.Growth of multi-elements complex coating on AZ91D magnesium alloy through conversion treatment[J].Journal of Alloys and Compounds,2007,427:310-315.
【5】Hongwei Huo,Ying Li,Fuhui Wang.Corrosion of AZ91D magnesium alloy with a chemical conversion coating and electroless nickel layer[J].Corrosion Science,2004,46:1467-1477.
【6】L J Zhang,J J Fan,Z Zhang,et al.Study on the anodic film formation process of AZ91D magnesium alloy[J].Electrochimica Acta,2007,52:5325-5333.
【7】Yongjun Zhang,Chuanwei Yan.Development of anodic film on Mg alloy AZ91D[J]..Surface and Coatings Technology,2006,21:2381-2386.
【8】吴国松,曾小勤,郭兴伍,等.气相沉积膜层在镁合金表面改性中的应用[J].材料工程,2006,1:61-65.
【9】Ch Christoglou,N Voudouris,G N Angelopoulos,et al.Deposition of aluminium on magnesium by a CVD process[J].Surface and Coatings Technology,2004,184:149-155.
【10】张津,孙智富,汪崧扬,等.镁合金表面热喷铝工艺及防腐性研究[J].表面技术,2003,32(3):8-10.
【2】王雪敏,曾小勤,吴国松,等.磁控溅射在镁合金表面处理中的应用[J].铸造技术,2006,27(4):412-415.
【3】霍宏伟,王福会,李瑛,等.Al扩散涂层对AZ91D Mg合金耐腐蚀性能的影响[J].腐蚀科学与防护技术,2001,13:484-486.
【4】Ming Zhao,Shusen Wu,Ping An,et al.Growth of multi-elements complex coating on AZ91D magnesium alloy through conversion treatment[J].Journal of Alloys and Compounds,2007,427:310-315.
【5】Hongwei Huo,Ying Li,Fuhui Wang.Corrosion of AZ91D magnesium alloy with a chemical conversion coating and electroless nickel layer[J].Corrosion Science,2004,46:1467-1477.
【6】L J Zhang,J J Fan,Z Zhang,et al.Study on the anodic film formation process of AZ91D magnesium alloy[J].Electrochimica Acta,2007,52:5325-5333.
【7】Yongjun Zhang,Chuanwei Yan.Development of anodic film on Mg alloy AZ91D[J]..Surface and Coatings Technology,2006,21:2381-2386.
【8】吴国松,曾小勤,郭兴伍,等.气相沉积膜层在镁合金表面改性中的应用[J].材料工程,2006,1:61-65.
【9】Ch Christoglou,N Voudouris,G N Angelopoulos,et al.Deposition of aluminium on magnesium by a CVD process[J].Surface and Coatings Technology,2004,184:149-155.
【10】张津,孙智富,汪崧扬,等.镁合金表面热喷铝工艺及防腐性研究[J].表面技术,2003,32(3):8-10.
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