纳米Fe—10Cr涂层电化学腐蚀行为影响研究Ⅰ.钝化性能
CORROSION BEHAVIOR OF Fe- 10Cr NANOCRYSTALLINE COATINGS ( Ⅰ ) THE PASSIVE BEHAVIOR OF Fe- 10Cr NANOCRYSTALLINE COATINGS IN ACIDIC SOLUTION
查看参考文献21篇
文摘
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利用磁控溅射技术制备出了晶粒尺寸为20nm-30nm的Fe—10Cr合金涂层.通过动电位极化曲线、电化学阻抗谱图(EIS)和Mott—Schottky分析等电化学测试手段,探讨了Fe—10Cr纳米涂层在0.05mol/LH_2SO_4+0.25mol/LNa_2SO_4溶液中的钝化性能。发现纳米化使材料的活性溶解增强;在钝化膜形成过程中Cr更容易富集,从而更容易钝化;纳米化后,材料表面钝化膜中的载流子密度下降,化学稳定性提高。 |
其他语种文摘
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Fe - 10Cr nanocrystalline ( nc ) coating with the grain size about 20 nm to 30 nm was fabricated on a glass substrate by magnetron sputtering technique. The corrosion behavior of the Fe - 10Cr nc coating and its counterpart alloys were investigated in 0.05 mol/L H_2SO_4 +0.25 mol/L Na_2SO_4 solution by polarization curves. The results showed that the active dissolution of Fe - 10Cr nc coating was accelerated as comparing with its counterpart Fe - 10Cr cast alloy. For Fe - 10Cr nc coating,it had a higher tendency to passive in acid solution and the passive current density was lower as compaed with its counterpart ahoy. The further average active energy measurement, EIS measurement and Mott -Schottky analysis revealed that the average active energy for the dissolving reaction of the Fe- 10Cr nc coating was higher. This is attributed to the higher defect density on the nc coating. On the other hand,even though the same n type semiconductor passive film was formed on both nc sputtering coating and its counterpart alloy,but Cr was easier to accumulate in the passive film of Fe - 10Cr nc coating and the donor density in its passive film was lower. The higher passive ability of the nc sputtering coating was attributed to the more Cr accumulated in the passive film and the higher chemical stability of the passivity film. |
来源
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中国腐蚀与防护学报
,2007,27(1):35-42 【核心库】
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关键词
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纳米晶
;
晶粒尺寸
;
腐蚀行为
;
钝化
;
钝化随
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地址
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中国科学院金属研究所, 金属腐蚀防护国家重点实验室, 沈阳, 110016
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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1005-4537 |
学科
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金属学与金属工艺 |
基金
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国家自然科学基金项目
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文献收藏号
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CSCD:2743111
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参考文献 共
21
共2页
|
1.
Tjong S C. Nanocrystalline materials and coatings.
Mater Sci Eng R,2004,45:1-88
|
被引
46
次
|
|
|
|
2.
Zeiger W. Corrosion behaviour of a nanocrystalline FeAl8 alloy.
Nanostructured Materials,1995,6:1013-1016
|
被引
16
次
|
|
|
|
3.
Mariano N A. Corrosion resistance of amorphous and nanocrystalline Fe-M-B(M=Zr Nb)alloys.
Mater Sci Forum,2000,861:343-346
|
被引
3
次
|
|
|
|
4.
Oblonsky L J. In situ determination of the composition of surface films formed on Fe-Cr alloys.
J Electrochem Soc,1998,145:1922-1932
|
被引
1
次
|
|
|
|
5.
Kirchheim R. The passivity of iron-chromium alloys.
Corros Sci,1989,29:899-917
|
被引
13
次
|
|
|
|
6.
Mitrovic-Scepanovic V. Nature of passive films on Fe-26 Cr alloy.
Corros Sci,1984,24:479-490
|
被引
2
次
|
|
|
|
7.
Haupt S. A combined surface analytical and electrochemical study of the formation of passive layers.
Corros Sci,1995,37:43-54
|
被引
9
次
|
|
|
|
8.
Maurice V. XPS and STM study of the passive films formed on Fe-22Cr(110)single-crystal surfaces.
J Electrochem Soc,1996,143:1182-1200
|
被引
8
次
|
|
|
|
9.
Mischler S. The chemical composition of the passive film on Fe-24Cr and Fe-24Cr-11 Mo studied by AES XPS and SIMS.
Corros Sci,1991,32:925-944
|
被引
11
次
|
|
|
|
10.
Olsson C O A. Passive films on stainless steels-chemistry structure and growth.
Electrochim Acta,2003,48:1093-1104
|
被引
56
次
|
|
|
|
11.
Wang F H. The effect of nanocrystallization on the selective oxidation and adhesion of Al2O3 scales.
Oxid Met,1997,48:215-224
|
被引
29
次
|
|
|
|
12.
Wang F H. Oxidation resistance of sputtered Ni3(AiCr)nanocrystallized coating.
Oxid Met,1997,47:247-258
|
被引
16
次
|
|
|
|
13.
Intrui R B. Localized corrosion of nanocrystalline 304 type stainless steel films.
Corrosion,1992,48:398-403
|
被引
5
次
|
|
|
|
14.
Atkins P W.
Physical Chemistry,1994
|
被引
3
次
|
|
|
|
15.
Tong W P. Nitriding iron at lower temperature.
Science,2003,299:686-688
|
被引
130
次
|
|
|
|
16.
曹楚南.
腐蚀电化学原理,2004
|
被引
79
次
|
|
|
|
17.
孟国哲. Fe-20Cr纳米涂层的电化学行为.
中国腐蚀与防护学报,2006,26(1):11-18
|
被引
4
次
|
|
|
|
18.
Cabrera N.
Rep.Prog.Phys,1949,12:163
|
被引
30
次
|
|
|
|
19.
Hakiki N E. The electronic structure of passive films formed on stainless steel.
Corros Sci,1995,37:1809-1822
|
被引
43
次
|
|
|
|
20.
Simoes A M P. Study of passive films formed on AISI 304 stainless steel by impedance measurements and photoelectrochemistry.
J Electrochem Soc,1990,137:82-87
|
被引
26
次
|
|
|
|
|