测量A0纯铝在去离子水中的极化曲线用来模拟反应堆池壳的点蚀.研究表明:A0纯铝在去离子水中很容易钝化.实验中用美国EG&G普林斯顿应用研究公司生产的273型恒电位/恒电流仪测量模拟孔电位,极化曲线表明:模拟腐蚀坑处于钝化状态,即便是氧化膜破裂,腐蚀坑也发展得很慢.用pH计测量孔中pH的变化,并得到其工作曲线,此曲线表明:带有氧化膜的点蚀坑坑内存在明显的酸化现象.并对A0铝池壳的服务寿命进行了估计.
The anode polarization curve of A0 pure aluminum in DI (de-ions) water was measured to simulate the pit corrosion of reactor pool shell. It confirmed the A0 aluminum is easy to passivate in DI water. The potential in the pit were determined with EG&G Princeton Applied Research Potentiostat/ Galvanostat Model 273, the polarization curve shows that the simulated corrosion pit was in passivated situation, even ifthe oxidization film was broken, the corrosion pit will probably develop slowly, the varied pH in pit was determined with pH measurer, and the working curves were obtained, which shows the obvious acidification exists in pit for the sample with oxidization film. The service life of A0 aluminum pool shell was estimated. Key words: pit corrosion; A0 pure aluminum; simulating; anode polarization; potential; acidification
参考文献
| [1] | Pawel SJ.;Manneschmidt ET. .Corrosion of type 6061-T6 aluminum in mercury and mercury vapor[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2003(0):355-364. |
| [2] | Maekawa Fujio;Ikeda Yujiro;Cheng Edward .Decay Heat Measurement on Aluminum,Copper and Type 304 Stainless Steel Irradiated by D-T Neutrons[J].Fusion Engineering and Design,1998,42:229-233. |
| [3] | Hertz KL.;Causey RA.;Cowgill DF. .The effect of coatings on deuterium retention and permeation in aluminum 6061-T6 APT tritium production tubes[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2002(2/3):255-265. |
| [4] | Gohar Y;Parker R;Rebut P H .ITER Blanket Designs[J].Fusion Engineering and Design,1995,27:52-61. |
| [5] | Meyer MK.;Wiencek TC.;Hayes SL.;Snelgrove JL.;Hofman GL. .Irradiation behavior of U-Nb-Zr alloy dispersed in aluminum[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2001(2):175-179. |
| [6] | Kaminski MD.;Goldberg MM. .Aqueous corrosion of aluminum-based nuclear fuel[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2002(2/3):182-188. |
| [7] | 白新德,陈鹤鸣,马春来,彭德全,董铎,钟大辛,陆金法,郭宝华,周昕,白光美,郭金梁.草酸溶液中铝池壳的阳极氧化技术[J].稀有金属材料与工程,2004(03):300-304. |
| [8] | Malu W K.Corrosion Problem in the CRENK TRIGA MARK Ⅱ Research Reactor[M].New York:Academic Press,1990 |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%