董学泉,孔德军,王进春

• 1:常州大学机械工程学院
• 2:江苏省材料表面科学与技术重点实验室常州大学

摘要(Abstract)：

利用电弧喷涂工艺在S355钢表面进行了喷涂Al涂层,通过SEM、EDS、XRD对试样表面-界面进行了形貌、物相、面扫描和线扫描分析。用能谱面扫描观察了涂层表面化学元素分布状态,并结合界面的能谱面扫描和线扫描分析,讨论了涂层与基体的结合机理。采用质量分数为3.5%Na Cl溶液进行了电化学性能测试,检验了Al涂层的耐腐蚀性能。结果表明,电弧喷涂Al涂层在S355基体表面形成均匀、致密、结合良好的Al涂层,其物相为纯Al和α-(Al Fe),其中α-(Al Fe)出现在扩散层;Al和O元素在涂层表面形成富集区,形成致密氧化膜对Al涂层进行保护;Al元素在结合界面形成富集层,其原子浓度发生阶梯过渡变化,在扩散层中发生Fe-Al化合反应,形成冶金结合方式;Al涂层极化曲线发生正向移动,耐腐蚀性较好,对S355钢基体起到了保护作用。

关键词(KeyWords)： S355钢;电弧喷涂Al涂层;表面-界面形貌;电化学腐蚀

Abstract:

Keywords:

基金项目(Foundation): 江苏省科协首席专家(工程师)项目;; 中国学位与研究生教育学会研究课题(C1-2013Y07-051)

作者(Author): 董学泉,孔德军,王进春

DOI: 10.13289/j.issn.1009-6264.2015.04.038

参考文献(References)：

• [1]芦琳,李周波.S355、Q345D的低温力学性能[J].低温工程,2012(5):54-62.LU Lin,LI Zhou-bo.Low temperature mechanical properties of S355、Q345D[J].Cryogenics,2012(5):54-62
• [2]狄国标,刘振宇,郝利强,等.海洋平台用钢的生产现状及发展趋势[J].机械工程材料,2008,32(8):1-3.DI Guo-biao,LIU Zhen-yu,HAO Li-qiang,et al.Present production state and development tendency of offshore platform steels[J].Materials for Mechanical Engineering,2008,32(8):1-3.
• [3]邵怀启,韩文礼,王雪莹,等.海洋飞溅区钢结构的腐蚀规律与防护措施[J].腐蚀与防护,2008,29(11):646-649.SHAO Huai-qi,HAN Wen-li,WANG Xue-ying,et al.Corrosion and protection of offshore structures in splash zone[J].Corrosion&Protection,2008,29(11):646-649.
• [4]黄伟九,李兆峰,刘明,等.热扩散对镁合金锌铝涂层界面组织和性能的影响[J].材料热处理学报,2007,28(2):106-109.HUANG Wei-jiu,LI Zhao-feng,LIU Ming,et al.Influence of heat diffusion on the interface microstructure and properties of zinc-aluminum coating on magnesium alloy[J].Transactions of Materials and Heat Treatment,2007,28(2):106-109.
• [5]李岩,凌国平,刘柯钊,等.铁素体不锈钢室温熔盐镀铝层的热处理[J].材料热处理学报,2009,30(5):182-186.LI Yan,LING Guo-ping,LIU Ke-zhao,et al.Heat treatment of aluminum coating electrodeposited on ferritic stainless steel at room temperature molten salts[J].Transactions of Materials and Heat Treatment,2009,30(5):182-186
• [6]左寒松,李贺军,齐乐华,等.铝合金微熔滴沉积成形过程中缺陷形成机理研究[J].稀有金属材料与工程,2013,42(8):1596-1600.ZUO Han-song,LI He-jun,QI Le-hua,et al.Formation mechanism of defects in aluminum alloy during micro-droplet deposition[J].Rare Metal Materials and Engineering,2013,42(8):1596-1600.
• [7]吴永忠,龙丹,孔德军.X70管线钢热浸渗铝处理后盐雾腐蚀行为[J].四川大学学报,2011,43(1),218-222.WU Yong-zhong,LONG Dan,KONG De-jun.Salt spray corrosion behaviours of X70 pipeline steel by hot-dipped-aluminum treatment[J].Journal of Sichuan University,2011,43(1),218-222.
• [8]MAO S W,HUANG H L.Microstructure of aluminized stainless steel 310 after annealing[J].Surface and Coatings Technology,2010,205(2):533-539.
• [9]WANG Chen-guang,XU Zhu-de,Liu Run.Fabrication and optical Property of Cu7S4hollow nanoparticles formed through kirkendall effect[J].Chemical Research in Chinese Universities,2008,24(2):249-250.
• [10]Madel C,Schwalbe G,Haberkern R.Hume-Rothery effects in amorphous and quasicrystalline Al-Cu-Fe[J].Materials Science&Engineering A,2000,294:535-538.
• [11]王兴庆,隋永江,吕海波.铁铝原子在金属间化合物形成中的扩散[J].上海大学学报,1998,4(6):661-667.WANG Xing-qing,SUI Yong-jiang,LHai-bo.Fe and Al atoms diffusion in intermetallic formation[J].Journal of Shanghai University,1998,4(6):661-667.
• [12]宫文彪,李于朋,马凯,等.镁合金等离子喷涂Al/Al2O3涂层的耐腐蚀性能[J].材料热处理学报,2009,30(6):164-168.GONG Wen-biao,LI Yu-peng,MA Kai,et al.Corrosion resistance of Al/Al2O3coating prepared by plasma spraying on magnesium alloy[J].Transactions of Materials and Heat Treatment,2009,30(6):164-168.

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