| 时效处理对2205双相不锈钢在Nacl溶液中电化学腐蚀行为研究 |
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| 引用本文： | 石树坤,王均,李海丰,王院生,张雨. 时效处理对2205双相不锈钢在Nacl溶液中电化学腐蚀行为研究[J]. 腐蚀科学与防护技术, 2011, 0(6) |
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| 作者姓名： | 石树坤 王均 李海丰 王院生 张雨 |
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| 作者单位： | 四川大学制造科学与工程学院; |
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| 基金项目： | 国家自然科学基金项目(50901047); 教育部博士点新教师基金项目(200806101051)资助 |
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| 摘 要： | 采用极化曲线法和电化学阻抗法,研究了时效处理温度和时间对2205双相不锈钢在3.5%的NaCl溶液中电化学腐蚀特性的影响,并借助金相显微镜(OM)、扫描电镜(SEM)和能谱仪(EDS)表征其显微组织的变化.结果表明,双相不绣钢的自腐蚀电位随着时效温度(800～900℃)的升高变得愈负,腐蚀速率先增大后减小;随着时效时间(2h、8h、16h)的延长,自腐蚀电位愈负,腐蚀速率逐渐增大;时效析出的σ相是导致高温时效双相不锈钢耐电化学腐蚀能力下降的主要因素.
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| 关 键 词： | 2205不锈钢 固溶时效 电化学阻抗谱 微观组织 |
Effect of Aging on Electrochemical Corrosion Behavior of 2205 Stainless Steelin NaCl Solution |
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| SHI Shu-kun,WANG Jun.LI Hai-feng.WANG Yuan-sheng.ZHANG Yu School of Manufacturing Science , Engineering,Sichuan University,Chengdu. Effect of Aging on Electrochemical Corrosion Behavior of 2205 Stainless Steelin NaCl Solution[J]. Corrosion Science and Protection Technology, 2011, 0(6) |
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| Authors: | SHI Shu-kun WANG Jun.LI Hai-feng.WANG Yuan-sheng.ZHANG Yu School of Manufacturing Science Engineering Sichuan University Chengdu |
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| Affiliation: | SHI Shu-kun,WANG Jun.LI Hai-feng.WANG Yuan-sheng.ZHANG Yu School of Manufacturing Science and Engineering,Sichuan University,Chengdu 610065 |
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| Abstract: | The effect of aging treatmnet on electrochemical corrosion of 2205 stainless steel in 3.5% NaCl solution was studied by potentiod-dynamic scanning(PDS) and electrochemical impendence spectroscopy(EIS).The niicrostructure of the alloys were observed by opticall microscope(OM). scanning electron microscope(SEM with EDS).The results showed that self-corrosion potential of the duplex stainless steel decrease as the aging temperature increases.while corrosion rate increases firstly and decreases subsequently.Bes... |
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