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| 題 名 | 鋯四合金於一次側水中高溫氧化交流阻抗反應=AC-Impedance Response of High Temperature Oxidation of Zircaloy-4 in Primary Water |
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| 作 者 | 馮克林; 沈榮福; 黃佳伸; | 書刊名 | 台電工程月刊 |
| 卷 期 | 578 1996.10[民85.10] |
| 頁 次 | 頁73-79 |
| 分類號 | 341.37 |
| 關鍵詞 | 鋯四合金; 鋰; 高溫氧化; 交流阻抗; Zircaloy-4; Lithium; High temperature oxidation; AC-impedance; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 近年來鋯合金高溫腐特性愈來愈受到核能界的關注。燃料週期的延長以 及高pH高鋰濃度水質都被懷疑有加快鋯合金高溫氧化速率的作用,進而影響到 鋯合金燃料棒於爐心內之使用壽命。 利用交流阻抗測量技術可以於線上持續監測鋯四合金於模擬一次側高鋰濃度高 溫水溶液環境中,長期浸泡狀況下之氧化行為,由交流阻抗數據所估算出之鋯四 合金腐蝕速率與重量增加測試結果相近,顯示交流阻抗為一適當電化學方法,可 用於評估鋯四合金高溫腐蝕特性。 |
| 英文摘要 | In recent years, research on the high temperatureoxidation of zircaloys in pressurized water reactor systems hasreceived increasing attention. Both the implementation ofelevated pH water chemistry and extended fuel cycles haveraised the likelihood of accelerated corrosion of the zircaloyfuel claddings. As a result, the integrity of zircaloy withinnormal service life has been questioned with increasingfrequency. On-line monitoring of high temperature oxidation be-havior of zircaloy-4 under long-term immersion of primarywater environment with high lithium contents was performedwith AC-impedance technique. The corrosion data estimatedfrom AC test were fairly comparable to those of zircaloy-4weight-gain experiments. It is therefore proposed that AC-impedance technique is an appropriate method to charcaterizethe in-situ high temperature oxidation behavior of zircaloy-4. |
本系統中英文摘要資訊取自各篇刊載內容。