东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2007, Vol. 28 ›› Issue (12): 1754-1757.DOI: -

• 论著 • 上一篇    下一篇

Ni_3Si涂层对Ti_6Al_4V合金抗NaCl/O_2/H_2O(g)协同腐蚀性能的影响

于存贞;魏德洲;朱圣龙;   

  1. 东北大学资源与土木工程学院;东北大学资源与土木工程学院;中国科学院金属研究所腐蚀与防护国家重点实验室 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110016
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2007-12-15 发布日期:2013-06-24
  • 通讯作者: Yu, C.-Z.
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(FS01-0331)

Effect of Ni3Si coating on resistance to NaCl/O2/H2O synergic corrosion behavior of Ti6Al4V alloy

Yu, Cun-Zhen (1); Wei, De-Zhou (1); Zhu, Sheng-Long (2)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; (2) State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Acad. of Sci., Shenyang 110016, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-12-15 Published:2013-06-24
  • Contact: Yu, C.-Z.
  • About author:-
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摘要： 研究了磁控溅射法制备的Ni3Si涂层对Ti6Al4V合金在600℃下,抗NaCl/氧气/水蒸气协同腐蚀性能的影响.结果表明,在材料遭受腐蚀的过程中,Ni3Si涂层有效地改善了Ti6Al4V合金抗NaCl/氧气/水蒸气综合腐蚀的能力;而无涂层试样遭受了严重的腐蚀,不仅发生了内氧化,而且有大量的腐蚀产物脱落.利用带能谱的扫描电镜、X射线衍射、电子探针和表面光电子能谱对样品的腐蚀行为进行了分析,并讨论了涂层抗腐蚀的机理.

关键词: Ti6Al4V合金, Ni3Si涂层, NaCl, 氧气, 水蒸气, 协同腐蚀

Abstract: The effect of Ni3Si coating deposited by magnetron sputtering on the synergic anticorrosion behavior of the alloy Ti6Al4V was investigated at 600°C. The results showed that Ni3Si coating possesses excellent resistance to the synergic corrosion due to water vapor, O2 and NaCl because of the SiOx formation on the coating surface in corrosion process, while the alloy suffers from catastrophic corrosion, including not only the inner oxidation but also lots of corrosive products flaking off without the coating. The anticorrosion behavior of the alloy and coating were studied using scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS), X-ray diffraction (XRD), electron probe microanalysis (EPMA) and X-ray photoelectron spectroscopy (XPS), with the anticorrosion mechanisms of the coatings discussed.

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