全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

多弧离子镀Al涂层对310不锈钢在熔融碳酸盐中的腐蚀的影响

, PP. 417-421

Keywords: 310不锈钢,多弧离子镀,Al涂层,熔融碳酸盐,电化学阻抗谱,腐蚀

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用多弧离子镀技术在310不锈钢表面制备Al涂层并经高温扩散退火,在合金表面形成铝化物涂层.采用电化学阻抗谱技术研究其在650℃熔融碳酸盐中的腐蚀行为.结果表明,310不锈钢的腐蚀电化学阻抗谱由双容抗弧组成,随着时间的延长,在低频端出现传质控制的特征.而涂层的腐蚀电化学阻抗谱仍由双容抗弧组成,但阻抗值明显增加.铝涂层的优异抗腐蚀性能是由于在表面形成了连续的保护性LiAlO2(Al2O3)膜.

References

[1]  Spiegel M, Biedenkopf P, Grabke H J. Corrosion of iron base alloys and high alloy steels in the Li2CO3-K2CO3 eutectic mixture [J]. Corros. Sci., 1997, 39(7): 1193.
[2]  Donado R A, Marianowski L G, Maru H C, et al. Corrosion of the wet-seal area in molten carbonate fuel-cells: 1. Analysis[J]. J.Electrochem. Soc., 1984, 131(11): 2535.
[3]  Matsumoto K, Matsuoka A, Kiyokazu N. Evaluation of long-term stability of aluminized stainless steel used in MCFCs I.Effect of heat-treatment on characteristics of aluminized coating layer [J]. Denki Kagaku, 1998, 66(5): 537.
[4]  Indacochea J E A, Bloom I A, Krumpelt M A, et al. A comparison of two aluminizing methods for corrosion protection in the wet seal of molten carbonate fuel cells [J]. J. Mater. Res.,1998, 13(7): 1834.
[5]  Perez F J, Duday D, Hierro M P, et al. Hot corrosion study of coated separator plates of molten carbonate fuel cells by slurry aluminides [J]. Surf. Coat. Technol., 2002, 161(2): 293.
[6]  Aguero A, de Blas F J G, Garcia M C, et al. Thermal spray coatings for molten carbonate fuel cells separator plates [J]. Surf.Coat. Technol., 2001, 146: 578.
[7]  Frangini S, Masci A. Intermetallic FeAl based coatings deposited by the electrospark technique: corrosion behavior in molten (Li+K) carbonate [J]. Surf. Coat. Technol., 2004,184(1):31.
[8]  Frangini S, Loreti S, Masci A. Development of a new aluminizing method for molten carbonate fuel cell wet seals [J]. J.Fuel Cell Sci. Technol., 2005, 2(1):60.
[9]  Aguro A, Garcia M C, Muelas R, et al. Al slurry coatings for molten carbonate fuel cells separator plates [J]. Mater. Sci.Forum, 2001, 369-372: 759.
[10]  Primerano M, Li J, Yuh C Y, et al. Bipolar separator plate with improved wet seals [P]. US patent: 6372374, 2002.
[11]  Zeng C L, Li J. Electrochemical impedance studies of molten (0.9Na,0.1K)2SO4-induced hot corrosion of the Ni-based superalloy M38G at 900℃ in air[J]. Electrochim. Acta,2005, 50: 5533.
[12]  Nishina T, Uchida I, Selman J R. Gas electrode reactions in molten carbonate [J]. J. Electrochem. Soc., 1991, 141(5):1191.
[13]  Keijzer M, Lindbergh G, Hemmes K, et al. Corrosion of 304 stainless steel in molten-carbonate fuel cells [J]. J. Electrochem.Soc., 1999, 146(7): 2508.
[14]  王文, 曾潮流,吴维tao.FeAl金属间合金在熔融(Li0.68,K0.32)2CO2的腐蚀电化学阻抗谱研究[J]. 中国腐蚀与防护学报,1999, 19(6): 327.
[15]  Jun J H, Kim K Y, Jum J H. Influence of aluminum depletion of the lifetime of an Al-Fe coating in eutectic (Li,K)2CO3 at 650℃ [J]. Mater. Trans., 2003, 44(1): 133.
[16]  Jun J H, Kim K Y. Degradation behavior for Al-Fe coatings in wet-seal area of molten carbonate fuel cells [J]. J. Power Sources, 2002, 112: 153.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133