采用旋转圆桶冲刷腐蚀试验机,利用多种电化学测试手段,结合表面分析、失重测量研究了B10铜镍合金流动海水冲刷腐蚀、成膜过程和膜层的电化学信息,探讨了流速及腐蚀时间对成膜过程的影响.结果表明,B10合金在0、1、2、3、3.6、4m/s的试验流速海水中的腐蚀速度随着腐蚀时间的变化规律相似,在静止和流动海水中都会生成内、外双层保护性的腐蚀产物膜,随着流速增加,产物膜因受流体力学作用增大而被冲刷削薄;腐蚀反应阳极区随海水流速和时间变化较大,腐蚀受阳极反应和传质过程控制.
参考文献
| [1] | Hack H P.Role of the corrosion product film in the corrosion protection Cu-Ni Alloys in saltwater[D].Dissertation of Pennsylvania State University,1987. |
| [2] | K D Efird.The synergistic effect of Ni and Fe on the sea water corrosion of copper alloy[J].Corrosion,1977,33:347. |
| [3] | D D Macdonald,B C Syrett,S S Wing.Methods for measuring corrosion rates of copper-nickel alloys in flowing seawater[J].Corrosion,1978,28:25. |
| [4] | 张哲,姚禄安,甘复兴.铜镍合金表面膜对其电化学行为的影响[J].中国腐蚀与防护学报,1987,7(2):143. |
| [5] | Paul T,Wojcik,Mark E,Orazem.Experimental study of the erosion-corrosion of copper and copper nickel alloys using a submerged impinging jet[J].Corrosion,1997,17:435. |
| [6] | G Kear,B D Barker,K Stokes et al.Electrochemical corrosion behaviour of 90-10 Cu-Ni alloy in chlofide-based electrolytes[J].Applied Electrochemistry 2004,34:659. |
| [7] | 赵永韬,李海洪,陈光章.铜合金在海水中电化学阻抗谱特征研究[J].海洋科学,2005,29,(7):21. |
| [8] | 朱小龙,林乐耘,徐杰,等.Cu-Ni合金海水腐蚀产物膜研究进展[J].材料科学与工艺,1997,5(2):22. |
| [9] | 朱小龙,李中建,徐杰.Cu-Ni合金海水腐蚀产物膜的形成与破裂机制研究进展[J].稀有金属,1997,21(6):463. |
| [10] | 杨帆,郑玉贵,姚治铭,等.铜镍合金BFe-30-1-1在流动人工海水中的腐蚀行为[J].中国腐蚀与防护学报,1999,19(4):207 |
| [11] | 王洪仁,钱建华,滕国生,等.铜合金海水管路材料在流动海水中的腐蚀与防护[A].第三届海峡两岸材料腐蚀与防护研讨会论文集[C].北京:化学工业出版社,2002.777. |
| [12] | M E Folquer,S B Ribotta,S G Real et al.Study of copper dissolution and passivation processes by Eeectrochemical impedance spectroscopy[J].Corrosion,2002,58 (3):240 |
| [13] | D D Macdonald,B C Syrett,S S Wing.The corrosion of Cu-Ni alloys 706 and 715 in flowing sea water.Ⅱ -Effect of dissolved sulfide[J].Corrosion,1979,35 (8):387. |
| [14] | 徐海波,付洪田,赵广宇,等.铜阳极活性区溶解机制的电化学研究[J].中国腐蚀与防护学报,1999,19(1):27. |
| [15] | B C Syrett.Erosion-corrosion of copper-nickel alloys in sea water and other aqueous environments-a literature review[J].Corrosion,1976,32(6):242. |
| [16] | H P Dhar,R E White,G Burnell et al.Corrosion of Cu and CuNi alloys in 0.5 mol/L NaCl and in synthetic seawater[J].Corrosion,1985,41 (6):317. |
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