| 交换性离子和pH值对酸性土壤腐蚀的影响 |
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| 引用本文： | 席艳君,孙成,张淑泉,高立群. 交换性离子和pH值对酸性土壤腐蚀的影响[J]. 腐蚀科学与防护技术, 2002, 14(6): 343-345 |
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| 作者姓名： | 席艳君 孙成 张淑泉 高立群 |
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| 作者单位： | 中国科学院金属研究所,金属腐蚀与防护国家重点实验室,沈阳,110016 |
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| 摘 要： | 研究了交换性酸度总量、交换性H+、交换性铝对A3钢在酸性土壤中的腐蚀影响.结果 表明：深圳土作为酸性土，它的缓冲性能很强，加不同pH的硝酸，对其pH值影响不大； 随硝酸的pH的增加，交换性铝、交换性酸度总量、交换性H+有相对减小的趋势，腐蚀速 率增大.当土壤pH约为4时，阴极过程发生变化，由氧放电转为氢放电.
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| 关 键 词： | 酸性土壤腐蚀 交换性酸度总量 交换性H+ |
| 文章编号： | 1002-6495(2002)05-0343-03 |
| 修稿时间： | 2001-04-30 |
EFFECT OF EXCHANGEABLE IONS AND TOTAL ACIDITY ON CORROSION OF MILD STEEL IN ACIDIC SOIL |
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| XI Yanjun,SUN Cheng,ZHANG Shuquan,GAO Liqun State Key Lab.for Corrosion and Protection. EFFECT OF EXCHANGEABLE IONS AND TOTAL ACIDITY ON CORROSION OF MILD STEEL IN ACIDIC SOIL[J]. Corrosion Science and Protection Technology, 2002, 14(6): 343-345 |
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| Authors: | XI Yanjun SUN Cheng ZHANG Shuquan GAO Liqun State Key Lab.for Corrosion Protection |
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| Affiliation: | XI Yanjun,SUN Cheng,ZHANG Shuquan,GAO Liqun State Key Lab.for Corrosion and Protection,Institute of Metal Research,The Chinese Academy of Sciences,Shenyang 110016 |
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| Abstract: | Effect of exchangable total acidity,H + and aluminum in acidic soil on corrosion of A3 steel is studied.The results show that acidic soil at Shenzhen area shows a buffering performance to a certain extent and the addition of acid to the soil has little influence on its pH value.What's more,with increasing of pH of the acid,the content of exchangable total acidity,H + and aluminum decreases,at the same time corrosion rate increases.When the pH value of soil is 4,the reaction process of the cathode from oxygen discharging,transforms in to hydrogen discharging. |
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| Keywords: | acidic soil corrosion exchange total acidity exchange H + exchangeable ions pH |
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