1.东南大学 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.东南大学 江苏省工程力学分析重点实验室，江苏 南京 211189;3.西安理工大学 西北旱区生态水利工程国家重点实验室，陕西 西安 710048;4.西安建筑科技大学 土木工程学院，陕西 西安 710054
魏欢欢（1996—），男，陕西宝鸡人，东南大学博士生.E-mail：wh0402@seu.edu.cn
汤轶群（1985—），男，江苏连云港人，东南大学副教授，博士生导师，博士.E-mail：yi-qun.tang@seu.edu.cn
TU511.3
国家自然科学基金资助项目（52008094）；江苏省自然科学基金资助项目（SBK2020040）；江苏省研究生科研与实践创新计划项目（KYCX23_0273，KYCX24_0367）；中央高校基本科研业务费专项资金资助项目（2242024k30065）
WEI Huanhuan
Key Laboratory of Concrete & Pre-stressed Concrete Structures of Ministry of Education， Southeast University， Nanjing 211189， China;Jiangsu Key Laboratory of Engineering Mechanics， Southeast University， Nanjing 211189， China;State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China， Xi’an University of Technology， Xi’an 710048， China1.Key Laboratory of Concrete & Pre-stressed Concrete Structures of Ministry of Education， Southeast University， Nanjing 211189， China;2.Jiangsu Key Laboratory of Engineering Mechanics， Southeast University， Nanjing 211189， China;3.State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China， Xi’an University of Technology， Xi’an 710048， China;4.School of Civil Engineering， Xi’an University of Architecture & Technology， Xi’an 710054， China
为研究海洋浪溅区环境下高强钢及焊缝连接的腐蚀形貌特征和时变效应，通过微观扫描测试Q690高强钢及焊缝连接表面粗糙度参数，得到表面峰最大高度（Sp）、表面谷最大深度（Sv）、表面轮廓偏斜度（Ssk）及表面轮廓峭度（Sku）随腐蚀时间的演化规律，并进行回归分析与对比.结果表明：通过分析粗糙度参数随腐蚀时间的变化过程，以及对比Q690高强钢母材与焊缝连接扫描区域的差异性，能准确地判断其腐蚀程度及特征，从而为海洋环境下国产高强钢损伤评估提供新的途径.
The surface roughness parameters of Q690 high strength steel and weld joint specimens were assessed through microscopic scanning tests to investigate the dynamic changes in corrosion morphology characteristics of high strength steel（HSS） within the ocean splash zone corrosive environment. These investigations encompassed the analysis of parameters such as the maximum height of surface peaks Sp， the maximum depth of surface valleys Sv， the skewness of surface profiles Ssk， and the kurtosis of surface profiles Sku over varying periods of corrosion. Power function regression analyses and comparative assessments were conducted for each of these parameters. The results indicate that considering the differences in the scanning area of base material and weld joint of Q690 high strength steel， the corrosion degrees and characteristics can be accurately determined by analyzing the variation process of roughness parameters with corrosion time， so as to provide a new approach for damage assessment of domestically produced high strength steel in marine environments.
魏欢欢,汤轶群,张广才,陈晨.海洋环境下高强钢及焊缝连接粗糙度参数分析[J].建筑材料学报,2024,27(8):727-732
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