用改进的Devanathan双面电解池在恒温、恒湿)条件下检测热镀锌钢材的渗氢电流密度并观测其腐蚀形貌,研究了温度对其氢渗透行为的影响.结果表明,在湿度相同的条件下,随着模拟海洋大气环境温度的升高试样的氢渗透加速,且湿度越高温度的这种加速作用越显著;在高温和高湿条件下,试样的氢吸收和氢渗透进行得更快.
Hydrogen permeation behavior of hot-dip galvanized steels exposed to stimulated marine atmospheric environment at different relative humidity and temperature was investigated by hydrogen per-meation current measurement using modified Devanathan cell and scanning electron microscopy technique.Influence of temperature on hydrogen permeation process of galvanized steel exposed to simulated marine atmosphere was discussed. The results show that the rate of hydrogen permeation increased gradually with the temperature rising; higher relative humidity stimulated, more obvious hydrogen permeation current;the hydrogen permeation of galvanized steel was the most rapidly when exposed to marine atmospheric environment with high relative humidity and temperature.
参考文献
| [1] | E.Dubuisson,P.Lavie,F.Dalard,J.P.Caire,S.Szunerits,Corrosion of galvanised steel under an electrolytic drop,Corrosion Science,49(3),910-919(2007) |
| [2] | G.A.El-Mahdy,A.Nishikata,T.Tsuru,Electrochemical corrosion monitoring of galvanized steel under cyclic wet±dry conditions,Corrosion Science,42(1),183-194(2000) |
| [3] | E.Dubuisson,P.Lavie,F.Dalard,J.P.Caire,S.Szunerits,Study of the atmospheric corrosion of galvanised steel in a micrometric electrolytic droplet,Electrochemistry Com-munications,8(6),911-915(2006) |
| [4] | N.D.Tomashov,Mechanism of electrochemical corrosion of metals under insulating coating.2.kinetics of cathodic processes on insulated metals in electrolytes,Corrosion,20(7),T218-&(1964) |
| [5] | LI Yan,LIU Meng,ZHANG Yuzhi,ZHANG Dalei,Hydro-gen permeation and embrittlement of hot-dip galvanized steel exposed to seawater,The Chinese Journal of Nonfer-rous Metals,Accepted.(李焰,刘猛,张玉志,张大磊,热镀锌钢材在海水中的氢渗透行为和桅性研究,中国有色金属学报,已录用) |
| [6] | S.Oesch,M.Faller,Environmental effects on materials:The effect of the air pollutants SO_2,NO_2,NO and O-3 on the corrosion of copper,zinc and aluminum.A short literature survey and results of laboratory exposures,Cor-rosion Science,39(9),1505-1530(1997) |
| [7] | Y.Y.Chen,S.C.Chung,H.C.Shih,Studies on the initial stages of zinc atmospheric corrosion in the presence of chloride,Corrosion Science,48(11),3547-3564(2006) |
| [8] | ZHANG Dalei,LI Yan,Effect of humidity on hydrogen embrittlement susceptivity of hot-dip galvanized steel ex-posed to simulated marine atmosphere,The Chinese Jour-nal of Nonferrous Metals,Accepted.(张大磊,李焰,湿度对热镀锌钢材在海洋大气环境中氢脆敏感性的影响,中国有色金属学报,已录用) |
| [9] | CAO Chunan,Natural environmental corrosion of mate-rials in China,(Beijing,Chemical Industrial Press,2005)p.1(曹楚南,中国材料的自然环境腐蚀,(北京,化学化工出版社,2005)p.1) |
| [10] | D.L.Zhang,Y.Li,Hydrogen permeation characteriza-tion of hot-dip galvanized steel in simulated marine at-mospheric environment,Advanced Materials Research,2009,79-82,Multi-Functional Materials and Structures II:1051-1054 |
| [11] | D.H.Colemn,B.V.Popov,R.E.White,Hydrogen perme-ation inhibition by thin layer Zn-Ni alloy electrodepo-sition,Journal of Applied Electrochemistry,28(9),889-894(1998) |
| [12] | A.P.Yadav,H.Katayama,K.Noda,H.Masuda,A.Nishikata,T.Tsuru,Surface potential distribution over a zinc/steel galvanic couple corroding under thin layer of electrolyte,Electrochimica Acta,52(9),3121-3129(2007) |
| [13] | I.Dehri,M.Erbil,The effect of relative humidity on the atmospheric corrosion of defective organic coating materi-als:an EIS study with a new approach,Corrosion Science,42(6),969-978(2000) |
| [14] | H.Kim,B.N.Popov,K.S.Chen,Comparison of corrosion-resistance and hydrogen permeation properties of Zn-Ni,Zn-Ni-Cd and Cd coatings on low-carbon steel,Corrosion Science,45(7),1505-1521(2003) |
| [15] | M.Carbucicchio,R.Ciprian,F.Ospitali,G.Palombarini,Morphology and phase composition of corrosion products formed at the zinc-iron interface of a galvanized steel,Cor-rosion Science,50(9),2605-2613(2008) |
| [16] | Eiji Tada,Satomi Satoh,Hiroyuki Kaneko,The spa-tial distribution of Zn~(2+) during galvanic corrosion of a Zn/steel couple,Electrochimica Acta,49(14),2279-2285(2004) |
| [17] | A.Tahara,T.Kodama,Potential distribution measure-ment in galvaniccorrosion of Zn/Fe couple by means of Kelvin probe,Corrosion Science,42(4),655-673(2000) |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%