[1]舒赣平,陈 尧,卢瑞华,等.模拟海洋与工业大气环境下结构钢腐蚀行为[J].西安建筑科技大学学报(自然科学版),2022,54(04):475-481490.[doi:10.15986/j.1006-7930.2022.04.001]
　SHU Ganping,CHEN Yao,LU Ruihua,et al.Corrosion behavior of structural steel in simulated marine and industrial atmosphere environment[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2022,54(04):475-481490.[doi:10.15986/j.1006-7930.2022.04.001]
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模拟海洋与工业大气环境下结构钢腐蚀行为()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
54
期数:
2022年04期
页码:
475-481490
栏目:
出版日期:
2022-08-28

文章信息/Info

Title:
Corrosion behavior of structural steel in simulated marine and industrial atmosphere environment
文章编号:
1006-7930(2022)04-0475-07
作者:
舒赣平1; 陈 尧2; 卢瑞华1; 武成凤1
(1.东南大学 土木工程学院混凝土及预应力混凝土结构教育部重点实验室,江苏 南京 211189; 2.江苏科技大学 土木工程与建筑学院,江苏 镇江 212100)
Author(s):
SHU Ganping1;  CHEN Yao2;  LU Ruihua1;  WU Chengfeng1
(1.Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, Nanjing 211189, China; 2.School of Civil Engineering and Architecture, Jiangsu University of Science and Technology, Jiangsu Zhenjiang 212100, China)
关键词:
碳素结构钢;  微观形貌;  点蚀深度;  变异系数;  相关性模型
Keywords:
carbon structural steel;  microscopic morphology;  pitting depth;  variable coefficient;  correlation model
分类号:
TU391
DOI:
10.15986/j.1006-7930.2022.04.001
文献标志码:
A
摘要:
分别采用室内盐雾试验模拟海洋大气环境、周浸试验模拟工业大气环境,研究碳素结构钢在两种不同模拟环境下的腐蚀行为.通过SEM扫描电镜分析了碳素结构钢在两种不同环境下的腐蚀微观形貌差异,采用三维非接触表面形貌仪获得腐蚀试样点蚀深度分布模型和点蚀深度变异系数.结果表明:两种不同大气环境下碳素结构钢腐蚀形貌有明显差异; 平均腐蚀深度与时间呈幂函数关系; 点蚀深度近似服从正态分布,点蚀深度变异系数随腐蚀时间的增长有减小趋势,可作为碳素结构钢腐蚀特征评价指标之一.进一步采用灰色系统理论对碳素结构钢室内外腐蚀相关性进行分析,验证了室内模拟加速腐蚀试验的合理性,并建立了室内外腐蚀相关性预测模型,可用于碳素结构钢在海洋大气和工业大气环境下腐蚀程度的预测.
Abstract:
The corrosion behavior of carbon structural steel in two different simulated environments were studied by simulating marine atmosphere with salt spray test and industrial atmosphere with alternate immersion test. The corrosion micro morphology of carbon structural steel in two different environments was analyzed by SEM. The pitting depth distribution model and variation coefficient of pitting depth were obtained by three-dimensional non-contact surface morphology analyzer. The results show that the corrosion morphology of carbon structural steel is obviously different in two different atmospheric environments. The relationship between average corrosion depth and time is a power function. The pitting depth approximately follows the normal distribution, and the variation coefficient of pitting depth decreases with the increase of corrosion time, which can be used as one of the evaluation indexes of carbon structural steel corrosion characteristics. Then,the gray system theory was used to analyze the correlation between indoor and outdoor corrosion of carbon structural steel, which verified the rationality of indoor simulated accelerated corrosion test. The correlation prediction models of indoor and outdoor corrosion were established, which can be used to predict the corrosion depth of carbon structural steel in marine atmosphere and industrial atmosphere.

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备注/Memo

备注/Memo:
收稿日期:2022-06-01修改稿日期:2022-08-08
基金项目:江苏省节能减排(建筑节能)专项资金奖补项目(KT12-1); 江苏科技大学青年科技创新项目(2021TJ170J)
第一作者:舒赣平(1964—),男,博士,教授,主要研究方向:钢结构理论与设计.E-mail:shuganping@seu.edu.cn. 通信作者:陈 尧(1988—),女,博士,讲师,主要研究方向:钢结构耐久性与全寿命.E-mail:chenyao0727@just.edu.cn
更新日期/Last Update: 2022-08-28