蒸汽中的溶解氧对锆合金腐蚀行为的影响*
收稿日期: 2015-04-14
网络出版日期: 2015-11-24
基金资助
*国家自然科学基金资助项目51171175
EFFECT OF DISSOLVED OXYGEN IN STEAM ON THE CORROSION BEHAVIORS OF ZIRCONIUM ALLOYS
Received date: 2015-04-14
Online published: 2015-11-24
Supported by
Supported by National Natural Science Foundation of China (No.51171175)
研究了400 ℃, 10.3 MPa蒸汽中, 溶解氧(DO)的存在对Zr-4, N18 (Zr-1.0Sn-0.3Nb-0.3Fe-0.1Cr)以及N36 (Zr-1.0Sn-1.0Nb-0.3Fe)合金腐蚀行为的影响, 采用微循环动水回路将溶解氧含量分别控制在0.1×10-6和1.0×10-6. 结果表明, 2种溶解氧浓度条件下, 腐蚀90 d后, N18合金的腐蚀增重与Zr-4合金的腐蚀增重接近, 而N36合金的腐蚀增重最高. 腐蚀初期, DO含量更高的条件下3种合金的腐蚀增重反而更低; 随着腐蚀时间的延长, 1.0×10-6 DO条件下合金的腐蚀增重逐渐超过0.1×10-6 DO 条件下的腐蚀增重, Nb含量越高的合金, 所需的时间越短.
韦天国 , 林建康 , 龙冲生 , 陈洪生 . 蒸汽中的溶解氧对锆合金腐蚀行为的影响*[J]. 金属学报, 2016 , 52(2) : 209 -216 . DOI: 10.11900/0412.1961.2015.00219
Advanced boiling water reactors (ABWRS) show optimistic application prospect in the future. However, in these reactors, influence of dissolved oxygen (DO) on the corrosion rate of zirconium fuel claddings should be seriously considered. In this work, the effect of the dissolved oxygen (DO) on the corrosion behaviors of Zr-4, N18 (Zr-1.0Sn-0.3Nb -0.3Fe-0.1Cr) and N36 (Zr-1.0Sn-1.0Nb-0.3Fe) alloys in 400 ℃ and 10.3 MPa steam was investigated. A recirculation loop was used to control the DO level at about 0.1×10-6 and 1.0×10-6, respectively. The results showed that, under the two DO level conditions, N18 had almost the same weight gain as Zr-4 after exposure for 90 d, and N36 had the highest weight gain. In the initial period of the corrosion test, the three alloys had lower weight gain under higher DO level condition. With the increase of exposure time, the weight gain under 1.0×10-6 DO level exceeded gradually the weight gain under 0.1×10-6 level for each alloy, and the time needed for exceeding was significantly shorter for the alloy with higher Nb content.
Key words： Zr alloy; corrosion behavior; recirculation loop; dissolved oxygen
| [1] | Cox B.J Nucl Mater, 2005; 336: 331 |
| [2] | Zhou B X, Yao M Y, Li Z K, Wang X M, Zhou J, Long C S, Liu Q, Luan B F.J Mater Sci Technol, 2012; 28: 606 |
| [3] | Bojinov M, Karastoyanov V, Kinnunen P, Saario T.Corros Sci, 2010; 52: 54 |
| [4] | Kumar M K, Aggarwal S, Kain V, Saario T, Bojinov M.Nucl Eng Des, 2010; 240: 985 |
| [5] | Cox B, Garzarolli F, Rudling P.Corrosion of Zr-Nb Alloys, Zirat-9 Specialtopics Report, Advanced Nuclear Technology International, Ekbaken 33, SE-735, 35, SURAHAMMAR, Sweden, September, 2004 |
| [6] | Kumar M K, Aggarwal S, Beniwal D, Dey A K, Singh H, Kain V.Mater Corros, 2014; 65: 244 |
| [7] | Allen T R, Konings R J M, Motta A T.Compr Nucl Mater, 2012; 5: 49 |
| [8] | Yan Y H, Gao Z Y.Nucl Power Eng, 1997; 18(1): 12 |
| [8] | (严育华, 高祖瑛. 核动力工程, 1997; 18(1): 12) |
| [9] | Liu X R, Chen Z Q, Hou Z S.Shangdong Elec Power, 1996; (5): 46 |
| [9] | (刘信荣, 陈志奇, 侯忠松. 山东电力技术, 1996; (5): 46) |
| [10] | Zhang H X.PhD Dissertation, Xi'an Jiaotong University, 2009 |
| [10] | (章海霞. 西安交通大学博士学位论文, 2009) |
| [11] | Yao M Y, Zhou B X, Li Q, Xia S, Liu W Q.Shanghai Met, 2008; 30(6): 1 |
| [11] | (姚美意, 周邦新, 李强, 夏爽, 刘文庆. 上海金属, 2008; 30(6): 1) |
| [12] | Yao M Y, Li S L, Zhang X, Peng J C, Zhou B X, Zhao X S, Shen J Y.Acta Metall Sin, 2011; 47: 865 |
| [12] | (姚美意, 李士炉, 张欣, 彭剑超, 周邦新, 赵旭山, 沈剑韵. 金属学报, 2011; 47: 865) |
| [13] | Zhang H X, Fruchart D, Hlil E K, Ortega L, Li Z K, Zhang J J, Sun J, Zhou L.J Nucl Mater, 2010; 396: 65 |
| [14] | Ni N, Lozano-Perez S, Sykes J, Grovenor C.Ultramicroscopy, 2011; 111: 123 |
| [15] | Ni N, Hudson D, Wei J, Wang P, Lozano-Perez S, Smith G D W, Sykes J M, Yardley S S, Moore K L, Lyon S, Cottis R, Preuss M, Grovenor C R M.Acta Mater, 2012; 60: 7132 |
| [16] | Li Z K, Zhou L, Li P Z, Zhang J J, Xue X Y, Song Q Z.Rare Met Mater Eng, 1999; 28: 380 |
| [16] | (李中奎, 周廉, 李佩志, 张建军, 薛祥义, 宋启忠. 稀有金属材料与工程, 1999; 28: 380) |
| [17] | Zhao W J, Miao Z, Jiang Y R, Jiang H M, Zhou B X.Rare Met, 2000; 24: 150 |
| [17] | (赵文金, 苗志, 蒋有荣, 蒋宏曼, 周邦新. 稀有金属, 2000; 24: 150) |
| [18] | Parise M, Sicardy O, Cailletaud G.J Nucl Mater, 1998; 256: 35 |
| [19] | Tejland P, Andren H O.J Nucl Mater, 2012; 430: 64 |
| [20] | Baek J H, Jeong Y H, Kim I S.J Nucl Mater, 2000; 280: 235 |
| [21] | Jeong Y H, Kim H G, Kim T H.J Nucl Mater, 2003; 317: 1 |
| [22] | Kim H G, Park J Y, Jeong Y H.J Nucl Mater, 2005; 347: 140 |
| [23] | Proff C, Abolhassania S, Lemaignan C.J Nucl Mater, 2013; 432: 222 |
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