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投稿时间：2012-12-19 修订日期：2013-02-27
投稿时间：2012-12-19 修订日期：2013-02-27
中文摘要: 通过冲刷腐蚀实验研究5组Ni含量不同的奥氏体铸铁在2%的H2SO4、含砂量为15%的酸性溶液中的耐冲刷腐蚀性能，同时采用CS型电化学工作站进行电化学腐蚀行为的研究，对比研究低镍铸铁与高镍铸铁的抗冲刷腐蚀及耐腐蚀性能。结果表明：在2%的H2SO4溶液中，高、低镍铸铁的极化曲线形状相似，均出现一个钝化区域。石墨为B+A型的Ni含量为8.36%，Mn含量为6.57%的奥氏体铸铁的耐冲刷腐蚀性能与耐腐蚀性能均为低镍铸铁中最好，与高镍奥氏体铸铁相当。
Abstract:Laboratory experiments were carried out to investigate the erosion-corrosion resistance of 5 groups austenitic cast iron of different content of nickel under 2% H2SO4, 15% sand liquid-solid impingement conditions. The electrochemical characteristics have been examined via the CS electrochemical active station. Comparative study the erosion-corrosion resistance and corrosion resistance of high/low nickel cast iron. The results showed that：In 2% H2SO4 solution, the polarization curves of nickel austentic cast irons were similar, both appeared a passivation region. It has been shown in this paper that the cast iron which Ni content is 8.36%，Mn content is 6.57% exhbits better corrosion resistance than other low-nickel cast irons, close to the high-nickel cast iron.
keywords: austenitic cast iron,H2SO4 solution,erosion-corrosion,electrochemical corrosion, polarization curve
文章编号：201201110 中图分类号： 文献标志码：
基金项目:国家自然科学青年基金
| 作者 | 单位 | |
| 屠静雯 | 四川大学制造学院 | 317886483@qq.com |
| 孙兰* | 四川大学制造学院 | sunlan@scu.edu.cn |
| Author Name | Affiliation | |
| Tu Jing-Wen | 317886483@qq.com | |
| Sun Lan | School of Manufacturing Sci. and Eng., Sichuan University | sunlan@scu.edu.cn |
作者简介:
引用文本：
屠静雯,孙兰.镍奥氏体铸铁在H2SO4液中的冲刷腐蚀及电化学腐蚀行为[J].工程科学与技术,2013,45(Z1):168-172.
Tu Jing-Wen,Sun Lan.The erosion-corrosion and electrochemical characteristics of Ni austenitic cast iron in H2SO4 Solution[J].Advanced Engineering Sciences,2013,45(Z1):168-172.
引用文本：
屠静雯,孙兰.镍奥氏体铸铁在H2SO4液中的冲刷腐蚀及电化学腐蚀行为[J].工程科学与技术,2013,45(Z1):168-172.
Tu Jing-Wen,Sun Lan.The erosion-corrosion and electrochemical characteristics of Ni austenitic cast iron in H2SO4 Solution[J].Advanced Engineering Sciences,2013,45(Z1):168-172.