模拟海洋工业大气环境中Q235钢及耐候钢的腐蚀行为  

Corrosion Behavior of Q235 Steel and Weathering Steel in Simulated Marine Industry Atmosphere

作　　者：张琳[1,2] 王振尧[1] 赵春英[2] 曹公望 刘艳洁[1] 张丹丹[1,2] 

机构地区：[1]中国科学院金属研究所金属腐蚀与防护国家重点实验室,辽宁沈阳110016 [2]沈阳理工大学环境与化学工程学院,辽宁沈阳110159

出　　处：《材料保护》2015年第2期19-22,7,共4页Materials Protection

基　　金：国防技术基础项目(H102011B002);国家电网科技项目(KG12K16004;5211DS110493)资助

摘　　要：海洋工业大气环境是我国一种典型大气环境,目前缺乏Q235钢和耐候钢在其中腐蚀情况的对比研究。通过模拟加速腐蚀试验,利用腐蚀失重分析、X射线衍射仪(XRD)、扫描电镜(SEM)、能谱仪(EDS)和电化学测试,对比研究Q235钢和耐候钢在模拟海洋工业大气中的腐蚀失重、组织结构和电化学行为。结果表明:Q235钢表面的锈层没有明显的保护作用,耐候钢的耐蚀性优于Q235钢,适用于海洋工业大气环境。Few comparative studies are currently available about the corrosion behavior of Q235 steel and weathering steel in simulated marine industry atmosphere.Thus simulated accelerated corrosion test was conducted to determine the corrosion mass loss of Q235 steel and weathering steel in simulated marine industry atmosphere.The microstructure,morphology and elemental composition of the corroded surfaces of the two kinds of steel were analyzed by X-ray diffraction,scanning electron microscopy and energy dispersive spectrometry.Results showed that the rust layer of Q235 steel had no significant proteclive effect for the steel substrate.Besides,the weathering steel exhibited better corrosion resistance than the Q235 steel in the simulated marine industry atmospheric environment,showing good potential therein.

关 键 词：海洋工业大气 Q235钢 耐候钢 加速腐蚀 耐蚀性 

分 类 号：TG172.3[金属学及工艺—金属表面处理]