SUS304不锈钢在浓缩自来水中的点蚀敏感性
Pitting Sensitivity of SUS304 Stainless Steel in Condensed Tap Water
摘 要
采用极化曲线研究了SUS304不锈钢在不同温度浓缩不同倍率的自来水中的点蚀敏感性,比较了含不同浓度氯化钠的去离子水和自来水对不锈钢耐点蚀性能的影响.结果显示,随自来水温度和浓缩倍率的提高,不锈钢的点蚀敏感性增大;与自来水相比,在去离子水中氯离子对不锈钢点蚀敏感性的影响更显著.
自来水
点蚀
极化曲线
SUS304 stainless steel
tap water
pitting sensitivity
polarization curve
Abstract
The pitting sensibility of SUS304 stainless steel in tap water at different temperatures or different concentration multiples was studied using polarization curves.The influence of chloride on pitting corrosion resistance of the stainless steel was compared both in deionized water and tap water.The results showed that the pitting sensibility of the stainless steel rised with the increase of temperature and concentration multiple of the tap water.Chloride ion was more corrosive to stainless steel in deionized water than that in tap water.
中图分类号 TG172.5
所属栏目 试验研究
基金项目 上海市教委重点科研项目(06ZZ68);上海市科委项目(08DZ2201400、08DZ2210800)资助
收稿日期 2009/1/18
修改稿日期 2009/2/16
网络出版日期
作者单位点击查看
备注葛红花,教授.
引用该论文: CHENG Yun-zhang,GE Hong-hua,GONG Xiao-ming,LIU Rui,KANG Jun. Pitting Sensitivity of SUS304 Stainless Steel in Condensed Tap Water[J]. Corrosion & Protection, 2009, 30(7): 470～472
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参考文献
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【2】El-egamy S S,Badawy W A,Shehata H.Passivation and pitting corrosion of stainless steel in neutral sulphate solution[J].Corrosion Prevention and Control,2000,47(2):35-40.
【3】Hong-Hua Ge,Guo-Ding Zhou,Wen-Quan Wu.Passivation model of 316 stainless steel in simulated cooling water and the effect of sulfide on the passive film[J].Applied Surface Science,2003,211(1-4):321-334.
【4】葛红花,陈霞,张慧鑫,等.不同水质稳定剂对凝汽器不锈钢管的缓蚀性能[J].中国电力,2007,40(11):72-74.
【5】Hong-Hua Ge,Rui-Feng Guo,Yong-Sheng Guo,et al.Scale and corrosion inhibition of three water stabilizers used in stainless steel condensers[J].Corrosion,2008,64(6):553-557.
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