首先采用表面机械研磨的方法实现了AZ91D镁合金表面纳米化,然后研究了熔盐扩渗Ce对AZ91D镁合金表层组织及耐蚀性能影响.采用扫描电镜(SEM)、透射电镜(TEM)以及X射线衍射(XRD)对扩渗层形貌、成分及物相进行了分析,并利用电化学工作站测试了渗层在3.5％ NaCl溶液中的耐蚀性能.研究结果表明,经过表面纳米化及熔盐扩渗Ce后,AZ91D镁合金表面耐蚀能力明显提高,扩渗层厚度随着扩渗时间的延长而增加,扩渗层变得更连续、致密,表面扩渗层的主要富稀土相为Al2Ce金属间化合物.
参考文献
| [1] | M.F. Montemor;A.M. Simoes;M.J. Carmezim.Characterization of rare-earth conversion films formed on the AZ31 magnesium alloy and its relation with corrosion protection[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,200716(16):6922-6931. |
| [2] | Li-feng Hou;Ying-hui Wei;Xue-feng Shu.Nanocrystalline structure of magnesium alloys subjected to high energy shot peening[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,20101/2(1/2):347-350. |
| [3] | Chiu KY;Wong MH;Cheng FT;Man HC.Characterization and corrosion studies of fluoride conversion coating on degradable Mg implants[J].Surface & Coatings Technology,20073(3):590-598. |
| [4] | Dingfei Zhang;Yinning Gou;Yuping Liu;Xingxing Guo.A composite anodizing coating containing superfine Al_2O_3 particles on AZ31 magnesium alloy[J].Surface & Coatings Technology,2013:52-57. |
| [5] | Scharnagl, N;Blawert, C;Dietzel, W.Corrosion protection of magnesium alloy AZ31 by coating with poly(ether imides) (PEI)[J].Surface & Coatings Technology,200910/11(10/11):1423-1428. |
| [6] | Hai Z;Fei C;Bin Y;Han GJ;Askari J.Properties of the TiN coatings on previously Ti ion-implanted magnesium alloy substrate[J].Surface & Coatings Technology,200715(15):6730-6733. |
| [7] | 徐春杰;张金皛;田军;冯港雯;张忠明.扩渗时间对纯镁表面热扩渗锌层组织与性能的影响[J].材料热处理学报,2015(7):205-209. |
| [8] | K. Spencer;M.-X. Zhang.Heat treatment of cold spray coatings to form protective intermetallic layers[J].Scripta materialia,20091(1):44-47. |
| [9] | 王红霞;郭玉玲;梁伟;阴耀鹏;赵兴国.纯镁表面真空扩散锌钇共渗层的组织及性能[J].中国有色金属学报,2009(3):439-444. |
| [10] | Joon Sik Park;Jeong Min Kim;Ha Young Kim.Surface Protection Effect of Diffusion Pack Cementation Process by Al-Si Powders with Chloride Activator on Magnesium and Its Alloys[J].Materials transactions,20085(5):1048-1051. |
| [11] | Hongwei HUO;Ying LI;Fuhui WANG.Improvement on the Corrosion Resistance of AZ91D Magnesium Alloy by Aluminum Diffusion Coating[J].材料科学技术学报（英文版）,2007(03):379-382. |
| [12] | Zhang, MX;Huang, H;Spencer, K;Shi, YN.Nanomechanics of Mg-Al intermetallic compounds[J].Surface & Coatings Technology,201014(14):2118-2122. |
| [13] | Chang JK;Chen SY;Tsaia WT;Deng MJ;Sun IW.Improved corrosion resistance of magnesium alloy with a surface aluminum coating electrodeposited in ionic liquid[J].Journal of the Electrochemical Society,20083(3):C112-C116. |
| [14] | Wang YX;Guan SK;Zeng XQ;Dine WJ.Effects of RE on the microstructure and mechanical properties of Mg-8Zn-4Al magnesium alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20061-2(1-2):109-118. |
| [15] | T. Honma;T. Ohkubo;K. Hono;S. Kamado.Chemistry of nanoscale precipitates in Mg-2.1Gd-0.6Y-0.2Zr (at.%) alloy investigated by the atom probe technique[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20051/2(1/2):301-306. |
| [16] | Ming-Xing Zhang;Yi-Nong Shi;Haiqing Sun;Patrick M. Kelly.Surface Alloying of Mg Alloys After Surface Nanocrystallization[J].Journal of nanoscience and nanotechnology,20085(5):2724-2728. |
| [17] | 韩宝军;何琼;杨妙.机械研磨处理 AZ91D 镁合金表面晶粒细化研究[J].表面技术,2014(4):32-36. |
| [18] | 钟澄;刘磊;仵亚婷;何美凤;沈彬;邓意达;胡文彬.AZ91D镁合金表面低温扩散渗铝层的组织与性能[J].中国有色金属学报,2010(12):2269-2273. |
| [19] | 张景怀;唐定骧;张洪杰;王立民;王军;孟健.稀土元素在镁合金中的作用及其应用[J].稀有金属,2008(5):659-667. |
| [20] | Muhaffel, Faiz;Mert, Faruk;Cimenoglu, Huseyin;Hoeche, Daniel;Zheludkevich, Mikhail L.;Blawert, Carsten.Characterisation and corrosion behaviour of plasma electrolytic oxidation coatings on high pressure die cast Mg-5Al-0.4Mn-xCe (x=0, 0.5, 1) alloys[J].Surface & Coatings Technology,2015:200-211. |
| [21] | 梁成浩;王树森;黄乃宝;张志宏;张舒淳;任婧.铈镧混合稀土对AM60镁合金耐蚀耐磨性能的影响[J].稀有金属材料与工程,2015(3):521-526. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%