| 合金调控对钢筋耐蚀性能的影响北大核心CSCD |
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| 引用本文： | 刘涛,陈永峰,朱利斌,左小坦,张洪彪,刘超. 合金调控对钢筋耐蚀性能的影响北大核心CSCD[J]. 钢铁研究学报, 2022, 34(2): 156-161. DOI: 10.13228/j.boyuan.issn1001-0963.20210320 |
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| 作者姓名： | 刘涛 陈永峰 朱利斌 左小坦 张洪彪 刘超 |
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| 作者单位： | 1.芜湖新兴铸管有限责任公司， 安徽 芜湖 241002；2.北京科技大学冶金与生态工程学院， 北京 100083；3.北京科技大学新材料技术研究院， 北京 100083；4.北京科技大学国家材料腐蚀与防护科学数据中心， 北京 100083 |
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| 基金项目： | 国家自然科学基金资助项目(52104319)； |
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| 摘 要： | 采用通过微合金调控技术,合理控制钢中C、Cu、Cr和P等元素的含量,研发了一种比普通HRB400aE具有更高耐工业大气和含Cl^(-)污染物综合内陆自然环境腐蚀的400 MPa级低合金耐蚀抗震钢筋(NS-HRB400aE)。通过周浸试验、电化学极化曲线和电化学阻抗谱测试试验,对2种钢筋的耐蚀性进行了评价,结果表明合金化后的NS-HRB400AE低合金耐蚀抗震钢筋表面的腐蚀形貌为均匀腐蚀,而普通HRB400AE钢筋的腐蚀形貌主要为点蚀,NS-HRB400aE钢筋相比HRB400aE钢筋具有更低的腐蚀速率、更高的点蚀电位、更低的维钝电流密度和更高的临界Cl^(-)含量,表明微合金调控后钢筋的耐蚀性能显著提升。
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| 关 键 词： | 耐蚀抗震钢筋 微合金调控 腐蚀电化学 耐蚀性能 |
Effect of alloy adjustment on corrosion resistance of steel rebar |
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| LIU Tao,CHEN Yongfeng,ZHU Libin,ZUO Xiaotan,ZHANG Hongbiao,LIU Chao. Effect of alloy adjustment on corrosion resistance of steel rebar[J]. Journal of Iron and Steel Research, 2022, 34(2): 156-161. DOI: 10.13228/j.boyuan.issn1001-0963.20210320 |
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| Authors: | LIU Tao CHEN Yongfeng ZHU Libin ZUO Xiaotan ZHANG Hongbiao LIU Chao |
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| Affiliation: | 1.Wuhu Xinxing Casting Pipe Co., Ltd.， Wuhu 241002, Anhui, China；2.School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing， Beijing 100083, China；3.Institute of Advanced Materials and Technology, University of Science and Technology Beijing， Beijing 100083, China；4.National Materials Corrosion and Protection Data Center, University of Science and Technology Beijing， Beijing 100083, China |
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| Abstract: | A type of corrosion resistant aseismic ribbed bar (NS-HRB400aE) was developed by microalloy adjustment (like C, Cu, Cr and P), which had a better corrosion resistance than the normal HRB400aE aseismic ribbed bar steel in an integrated inland natural environment containing industrial atmosphere and Cl- pollutants. The corrosion resistance of the two kinds of steel rebar was evaluated by cyclic immersion test, electrochemical polarization curve test and electrochemical impedance spectroscopy test. According to the results, NS HRB400aE ribbed bar presented a uniform corrosion characteristic and HRB400aE ribbed bar mainly presented a localized corrosion characteristic. The lower corrosion rate, higher pitting potential, lower blunt current density and higher critical Cl- concentration of NS HRB400aE ribbed bar indicated the significant improvement of the steel bar corrosion resistance after microalloy adjustment. |
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| Keywords: | Key words：corrosion resistant aseismic ribbed bar microalloy adjustment corrosion electrochemistry corrosion resistance |
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