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采用电化学方法研究了LaFe10.8Co0.7Si1.50.2磁制冷材料在水介质中添加不同缓蚀剂后的腐蚀行为.结果表明,不同种类的无机缓蚀剂均对LaFe10.8Co0.7Si1.5 C0.2合金有缓蚀作用.在酸性条件下(pH=6.5),K2CrO7和Na2CO3复配时的缓蚀效果最好,缓蚀效率为90.00%;在碱性条件下(pH=8.0),Na2MoO4·2H2O和Na2HPO4·12H2O复配时的缓蚀效果最好,缓蚀效率为82.57%.

Effects of different corrosion inhibitors on corrosion behavior of LaFe10.8 Co0.7 Si1.5 C0.2 in aqueous media were investigated by electrochemical techniques.The results show that all studied inhibitors have inhibition effect on LaFe10.8Co0.7Si1.5C0.2.The best inhibition efficiency under acid condition (pH =6.5) is 90.00 % by the inhibitor made of K2CrO7 and Na2CO3,and 82.57% by the inhibitor made of Na2MoO4 · 2H2O and Na2HPO4 · 12H2O under alkaline condition (pH =8).

参考文献

[1] Rosendahl Hansen, B.;Theil Kuhn, L.;Bahl, C.R.H.;Lundberg, M.;Ancona-Torres, C.;Katter, M. .Properties of magnetocaloric La(Fe,Co,Si)_(13) produced by powder metallurgy[J].Journal of Magnetism and Magnetic Materials,2010(21):3447-3454.
[2] ZHANG Min,YE Rongchang,LONG Yi,CHANG Yongqin.Inhibition of La-Fe-Co-Si compound corrosion in distilled water by sodium molybdate and disodium hydrogen phosphate[J].稀土学报(英文版),2011(02):138-142.
[3] 柳鑫华,韩婕,孙彩云,芮玉兰,王庆辉.钼酸盐复合缓蚀剂在天然海水中的缓蚀机理[J].腐蚀与防护,2012(04):296-299.
[4] 李乃胜,马清林.葡萄糖酸钠和苯甲酸钠体系与锌盐、镧盐对Z30铸铁片的缓蚀协同研究[J].腐蚀科学与防护技术,2012(04):314-318.
[5] Xianghong Li;Shuduan Deng;Hui Fu .Sodium molybdate as a corrosion inhibitor for aluminium in H_3PO_4 solution[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2011(9):2748-2753.
[6] Phosphate ions used as green inhibitor against copper corrosion in tap water[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2010(4):1413.
[7] H. Gao;Q. Li;F.N. Chen;Y. Dai;F. Luo;L.Q, Li .Study of the corrosion inhibition effect of sodium silicate on AZ91D magnesium alloy[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2011(4):1401-1407.
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