三价铁离子对低合金钢在硼酸溶液中腐蚀的影响
Influence of Ferric Ions on Corrosion Behavior of A508III Low Alloy Steel in Boric Acid Solutions
摘 要
采用腐蚀失重试验及电化学测试研究了三价铁离子对A508III低合金钢在25 ℃硼酸溶液中腐蚀与电化学行为的影响。在25 ℃硼酸溶液中，随着三价铁离子浓度增加，A508III钢的电化学阻抗值和线性极化电阻减小，阳极和阴极极化电流密度增大，腐蚀速率显著增大。在Fe2(SO4)3溶液中，H3BO3的加入以及其浓度的改变对电化学行为和腐蚀速率均无明显的影响。三价铁离子会加速A508III钢在硼酸溶液中的腐蚀，而当溶液中三价铁离子浓度较高时，硼酸浓度对A508III钢的腐蚀无明显影响。
压水堆核电站
腐蚀
硼酸
三价铁
电化学行为
low alloy steel
pressurized water reactor nuclear power plant
corrosion
boric acid
ferric ion
electrochemical behavior
Abstract
The influence of ferric ions on corrosion and electrochemical behavior of A508III low alloy steel in boric acid solutions at 25 ℃ was investigated using electrochemical measurements and weight loss measurements. Increasing Fe3+ concentration in boric acid solution decreased the electrochemical impedance value and the linear polarization resistance,increased the current densities of anodic and cathodic polarization,and significantly increased the corrosion rate. Adding boric acid into ferric ion solutions had no any significant effect on electrochemical behavior and corrosion rate of the steel. Ferric ion would accelerate the corrosion of A508III steel in boric acid solution. The effect of boric acid concentration on corrosion of A508III was not significant if the concentration of ferric ion in solutions was considerably high.
中图分类号 TG174 DOI 10.11973/fsyfh-201509010
所属栏目 试验研究
基金项目 上海市浦江人才计划(12PJ1403600);教育部博士点基金博导类项目(20123108110021);上海大学创新基金
收稿日期 2014/9/21
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联系人作者吕战鹏(zplu@shu.edu.cn)
备注吕战鹏(1967-)，研究员，博士，从事材料腐蚀与防护研究。
引用该论文: XIAO Qian,L Zhan-peng,CHEN Jun-jie,XIA Xiao-feng,ZHOU Bang-xin. Influence of Ferric Ions on Corrosion Behavior of A508III Low Alloy Steel in Boric Acid Solutions[J]. Corrosion & Protection, 2015, 36(9): 840
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参考文献
【1】NRC IE Information Notice No. 82-02 Degradation of threaded fasteners in the reactor coolant pressure boundary of PWR plants[R]. US NRC,1982.
【2】O′NEIL S,HALL J F. Boric acid corrosion of carbon and low alloy steel pressure boundary components in PWRs[R]. EPRI Report NP-5985,EPRI,Palo Alto,CA:1988.
【3】李承亮,张明乾. 压水堆核电站反应堆压力容器材料概述[J]. 材料导报,2008,22(9):65-68.
【4】李冠军,彭君,李光福,等. 国产SA-508III低合金钢在模拟核电高温水服役环境中的应力腐蚀破裂及力学行为[J]. 腐蚀与防护,2011,32(9):673-676.
【5】PARK J H,CHOPRA O K,NATESAN K. Boric acid corrosion of light water reactor pressure vessel materials[R]. NUREG/CR-6875,USNRC,2004,ANL-04/08.
【6】Materials reliability program reactor vessel head boric acid corrosion testing:Task 3-Separate Effects Testing (MRP-165)[R]. EPRI,Palo Alto,CA:2005.
【7】颜爱娟,朱雪梅,滕颖丽,等. AZ31镁合金微弧氧化膜的电化学腐蚀性能[J]. 大连交通大学学报,2008,29(3):45-48.
【8】张鉴清等编著. 电化学测试技术[M]. 北京: 化学工业出版社，2010:204-297.
【9】魏宝明. 金属腐蚀理论及应用[M]. 北京:化学工业出版社,1984:26-30.
【10】杨熙珍，杨武. 金属腐蚀电化学热力学电位-pH图及其应用[M]. 北京: 化学工业出版社，1991: 100-105.
【2】O′NEIL S,HALL J F. Boric acid corrosion of carbon and low alloy steel pressure boundary components in PWRs[R]. EPRI Report NP-5985,EPRI,Palo Alto,CA:1988.
【3】李承亮,张明乾. 压水堆核电站反应堆压力容器材料概述[J]. 材料导报,2008,22(9):65-68.
【4】李冠军,彭君,李光福,等. 国产SA-508III低合金钢在模拟核电高温水服役环境中的应力腐蚀破裂及力学行为[J]. 腐蚀与防护,2011,32(9):673-676.
【5】PARK J H,CHOPRA O K,NATESAN K. Boric acid corrosion of light water reactor pressure vessel materials[R]. NUREG/CR-6875,USNRC,2004,ANL-04/08.
【6】Materials reliability program reactor vessel head boric acid corrosion testing:Task 3-Separate Effects Testing (MRP-165)[R]. EPRI,Palo Alto,CA:2005.
【7】颜爱娟,朱雪梅,滕颖丽,等. AZ31镁合金微弧氧化膜的电化学腐蚀性能[J]. 大连交通大学学报,2008,29(3):45-48.
【8】张鉴清等编著. 电化学测试技术[M]. 北京: 化学工业出版社，2010:204-297.
【9】魏宝明. 金属腐蚀理论及应用[M]. 北京:化学工业出版社,1984:26-30.
【10】杨熙珍，杨武. 金属腐蚀电化学热力学电位-pH图及其应用[M]. 北京: 化学工业出版社，1991: 100-105.
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