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物理气相沉积制备ZrMoN薄膜的腐蚀行为
          
Corrosion Behavior of ZrMoN Coatings Prepared by Physical Vapor Deposition

摘    要
采用物理气相沉积(PVD)技术在304不锈钢表面沉积ZrMoN薄膜,利用扫描电镜(SEM)、X射线衍射仪(XRD)和电化学测试等方法对不同温度下ZrMoN薄膜的表面形貌、相结构和腐蚀行为进行研究。结果表明:除400℃外,在其他试验温度下,ZrMoN薄膜均具有很高的表面能,表现出良好的疏水性,对防止电极系统中水累积有着明显的帮助;在模拟的质子交换膜燃料电池(PEMFC)阴极环境中,基体较早地出现了过钝化,而ZrMoN薄膜未发生过钝化,这表明ZrMoN薄膜有助于提高不锈钢的耐蚀性能;温度为300,400℃时,ZrMoN薄膜具有良好的耐蚀性,在PEMFC的双极板材料的研究中具有很大的潜力。
标    签 PVD技术   腐蚀行为   双极板材料   ZrMoN薄膜   physical vapor deposition (PVD)   corrosion behavior   bipolar plate material   ZrMoN coating  
 
Abstract
ZrMoN coatings were deposited on 304 stainless steel surface by physical vapor deposition (PVD). The surface morphology, phase structure and corrosion behavior of ZrMoN coatings at different temperatures were analyzed by the method of scanning electron microscopy (SEM), X-ray diffraction (XRD) and electrochemical test. The results show that ZrMoN coatings at test temperatures except 400℃ had high surface energy, showing good hydrophobicity which is helpful to prevent water accumulating in electrode system. In the simulated cathode environment of proton exchange membrance fuel cell (PEMFC), transpassivation appeared early for the substrate but did not appear for ZrMoN coatings. This indicates that the ZrMoN coating is helpful to improve the corrosion resistance of the stainless steel. ZrMoN coatings exhibited excellent corrosion resistance at temperatures of 300℃ and 400℃, which shows great potential in the study of bipolar plate material of PEMFC.

中图分类号 TG174   DOI 10.11973/fsyfh-201806008

 
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所属栏目 试验研究

基金项目 江苏省自然科学基金项目(BK20141292)

收稿日期 2016/10/15

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引用该论文: ZHENG Chuanbo,CHEN Xi,CAI Yuanfei. Corrosion Behavior of ZrMoN Coatings Prepared by Physical Vapor Deposition[J]. Corrosion & Protection, 2018, 39(6): 453


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