| (Short communication) Degradation of corrosion resistance of Zircaloy-4 in LiOH aqueous solution |
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| 作者姓名： | LIU Wenqing ZHOU Bangxin LI Qiang and YAO Meiyi Institute of Materials Shanghai University Shanghai China |
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| 作者单位： | LIU Wenqing，ZHOU Bangxin，LI Qiang，and YAO Meiyi Institute of Materials，Shanghai University，Shanghai 2013072，China |
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| 基金项目： | This work was financially supported by the National Natural Science Foundation of China (Nos. 50301009 and 50171039)，the Education Development Foundation of Shanghai (No. 03AK24) |
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| 摘 要： | To investigate the degradation of corrosion resistance of Zircaloy-4 in LiOH aqueous solution, SIMS (secondary ion mass spectrometry) analysis was performed to examine the profiles of Li~ , K~ , and OH~- in oxide layers formed in the same concentration (0.1 mol/L) LiOH and KOH solutions. Even though the oxide layers have an equal thickness, the penetration depth of K~ is shallower than that of Li~ , and the penetration depth of OH~- corroded in KOH solution is also shallower than that corroded in LiOH solution. It shows that the diffusion of OH~- into oxide layer is accompanied by the corresponding cation. The difference of degradation effect of LiOH and KOH solutions on the corrosion resistance of Zircaloy-4 was discussed.
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(Short communication) Degradation of corrosion resistance of Zircaloy-4 in LiOH aqueous solution |
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| LIU Wenqing,ZHOU Bangxin,LI Qiang,and YAO Meiyi Institute of Materials,Shanghai University,Shanghai ,China.(Short communication) Degradation of corrosion resistance of Zircaloy-4 in LiOH aqueous solution[J].Rare Metals,2004(3). |
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| Authors: | LIU Wenqing ZHOU Bangxin LI Qiang and YAO Meiyi Institute of Materials Shanghai University Shanghai China |
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| Affiliation: | LIU Wenqing,ZHOU Bangxin,LI Qiang,and YAO Meiyi Institute of Materials,Shanghai University,Shanghai 2013072,China |
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| Abstract: | To investigate the degradation of corrosion resistance of Zircaloy-4 in LiOH aqueous solution, SIMS (secondary ion mass spectrometry) analysis was performed to examine the profiles of Li~ , K~ , and OH~- in oxide layers formed in the same concentration (0.1 mol/L) LiOH and KOH solutions. Even though the oxide layers have an equal thickness, the penetration depth of K~ is shallower than that of Li~ , and the penetration depth of OH~- corroded in KOH solution is also shallower than that corroded in LiOH solution. It shows that the diffusion of OH~- into oxide layer is accompanied by the corresponding cation. The difference of degradation effect of LiOH and KOH solutions on the corrosion resistance of Zircaloy-4 was discussed. |
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| Keywords: | Zircaloy-4 corrosion resistance SIMS LiOH aqueous solution |
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