| 时效对2205双相不锈钢在硫环境下的电化学腐蚀行为 |
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| 引用本文： | 张雨,王均,石树坤,王院生.时效对2205双相不锈钢在硫环境下的电化学腐蚀行为[J].中国腐蚀与防护学报,2012,32(6):496-500. |
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| 作者姓名： | 张雨 王均 石树坤 王院生 |
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| 作者单位： | 四川大学制造科学与工程学院 成都 610065 |
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| 基金项目： | 国家自然科学基金青年基金(50901047)和教育部博士点新教师基金(2008006101051)资助 |
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| 摘 要： | 采用极化曲线法和电化学阻抗法，分析了经不同时效时间后的2205双相不锈钢在3.5%的NaCl+(1，5，10) g/L S介质溶液中的电化学腐蚀特性。研究表明：经过时效处理(800℃)的2205双相不锈钢会产生析出相(σ相)，对2205 双相不锈钢的腐蚀有严重影响；随着时间的延长，σ相析出量明显增多，耐腐蚀性越弱。此外， 随着硫单质的加入，也促进了不锈钢的腐蚀。
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| 关 键 词： | 2205双相不锈钢 时效处理 σ相 电化学腐蚀 |
| 收稿时间： | 2011-12-01 |
EFFECT OF AGING ON ELECTROCHEMICAL CORROSION BEHAVIOR OF 2205 DUPLEX STAINLESS STEEL IN SULFUR ENVIRONMENTS |
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| ZHANG Yu,WANG Jun,SHI Shukun,WANG Yuansheng.EFFECT OF AGING ON ELECTROCHEMICAL CORROSION BEHAVIOR OF 2205 DUPLEX STAINLESS STEEL IN SULFUR ENVIRONMENTS[J].Journal of Chinese Society For Corrosion and Protection,2012,32(6):496-500. |
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| Authors: | ZHANG Yu WANG Jun SHI Shukun WANG Yuansheng |
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| Abstract: | Effect of aging treatment on electrochemical corrosion of 2205 duplex stainless steel (DDS) in 3.5% NaCl and (1, 5, 10) g/L S solution were studied by potentio-dynamic scanning (PDS) and electrochemical impendence spectroscopy (EIS). The research shows that the σ-phase was precipitated at the γ/α interfaces after aging treatment(800℃), it has a harmful effect on the corrosion of 2205 DDS. The corrosion rate of 2205 DDS increases with the amount of σ-phase, which increases with aging time. Besides, it also promotes the corrosion rate of 2205 DDS with adding sulfur. |
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| Keywords: | 2205 DDS aging treatment &sigma phase electrochemical corrosion behavior |
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