尹程辉,潘吉林,陈俊航,白子恒,李曌亮,余伟,冯利军,肖葵.热带海洋大气环境下不锈钢的腐蚀寿命评估[J].表面技术,2022,51(4):183-193, 246.
YIN Cheng-hui,PAN Ji-lin,CHEN Jun-hang,BAI Zi-heng,LI Zhao-liang,YU Wei,FENG Li-jun,XIAO Kui.Corrosion Life Assessment of Stainless Steel in Tropical Marine Atmosphere[J].Surface Technology,2022,51(4):183-193, 246
热带海洋大气环境下不锈钢的腐蚀寿命评估
Corrosion Life Assessment of Stainless Steel in Tropical Marine Atmosphere
投稿时间:2021-01-27  修订日期:2021-08-31
DOI:10.16490/j.cnki.issn.1001-3660.2022.04.018
中文关键词:  不锈钢  海洋大气环境  室内加速腐蚀  室内外相关性
英文关键词:stainless steel  marine atmospheric environment  indoor accelerated corrosion  indoor and outdoor correlation
基金项目:国家重点研发计划(2017YFB0304602)
作者单位
尹程辉 北京科技大学 国家材料腐蚀与防护科学数据中心,北京 100083 ;新材料技术研究院,北京 100083 
潘吉林 四川成都土壤环境材料腐蚀国家野外科学观测研究站,成都610062 
陈俊航 北京科技大学 国家材料腐蚀与防护科学数据中心,北京 100083 ;新材料技术研究院,北京 100083 
白子恒 北京科技大学 国家材料腐蚀与防护科学数据中心,北京 100083 ;新材料技术研究院,北京 100083 
李曌亮 北京科技大学 国家材料腐蚀与防护科学数据中心,北京 100083 ;新材料技术研究院,北京 100083 
余伟 高效轧制工程研究中心,北京 100083 
冯利军 西南技术工程研究所,重庆 400039 
肖葵 北京科技大学 国家材料腐蚀与防护科学数据中心,北京 100083 ;新材料技术研究院,北京 100083 ;海洋装备用金属材料及其应用国家重点实验室,辽宁 鞍山 114021 
AuthorInstitution
YIN Cheng-hui National Materials Corrosion and Protection Data Center, Beijing 100083, China;Institute for Advanced Materials and Technology, Beijing 100083, China 
PAN Ji-lin Sichuan Chengdu Soil Environmental Material Corrosion National Observation and Research Station, Chengdu 610062, China 
CHEN Jun-hang National Materials Corrosion and Protection Data Center, Beijing 100083, China;Institute for Advanced Materials and Technology, Beijing 100083, China 
BAI Zi-heng National Materials Corrosion and Protection Data Center, Beijing 100083, China;Institute for Advanced Materials and Technology, Beijing 100083, China 
LI Zhao-liang National Materials Corrosion and Protection Data Center, Beijing 100083, China;Institute for Advanced Materials and Technology, Beijing 100083, China 
YU Wei National Engineering Research Center of Advanced Rolling, University of Science and Technology Beijing, Beijing 100083, China 
FENG Li-jun Southwest Technology and Engineering Research Institute, Chongqing 400039, China 
XIAO Kui National Materials Corrosion and Protection Data Center, Beijing 100083, China;Institute for Advanced Materials and Technology, Beijing 100083, China ;State Key Laboratory of Metal Material for Marine Equipment and Application, Liaoning Anshan 114021, China 
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中文摘要:
      目的 给出一种模拟万宁海洋大气环境的室内加速环境谱并对典型不锈钢材料进行寿命预测。方法 采用失重法对4种不锈钢的耐蚀性进行宏观分析。采用X射线光电子能谱分析仪(XPS)对4种不锈钢的腐蚀产物类型进行分析。采用扫描电子显微镜(SEM)对4种不锈钢的腐蚀产物进行微观分析。采用腐蚀电化学法对4种不锈钢进行宏观电化学分析。采用灰色关联度分析法研究室内加速环境谱与万宁海洋大气环境下户外暴露试验的相关性。结果 4种不锈钢的腐蚀失重速率都随着试验时间的增加而降低,其中430不锈钢腐蚀速率的减小程度最明显。4种不锈钢均在室内加速腐蚀试验中表现出较好的耐蚀性,耐蚀性由好到差依次为2205、316L、304、430不锈钢。XPS结果显示,304不锈钢与316L不锈钢的腐蚀产物主要为Fe2O3和Fe3O4;2205不锈钢的腐蚀产物主要包括Fe2O3以及FeOOH或FeCr2O4;430不锈钢的腐蚀产物属于典型不锈钢的腐蚀产物,主要由Fe2O3、Fe3O4和FeOOH组成。电化学分析表明,304、316L、2205不锈钢的容抗弧半径均在试验前期增大后期减小,430不锈钢的容抗弧半径随试验周期的增长不断减小。4种不锈钢的腐蚀电流密度和点蚀电位的变化趋势相同,腐蚀电流密度均为前期减小后期增大,点蚀电位不断升高,3周期后达到峰值随后降低。灰色关联度方法分析表明,室内加速试验环境谱与万宁户外暴露试验符合腐蚀动力学一致原则,并建立了腐蚀预测模型,各种不锈钢的预测模型为T304=1 030.499t0.761 524T316L=1 323.981t0.712401T2205=3 451.543t0.858 627T430=2 813.697t0.632 819。结论 该种模拟万宁海洋大气环境的室内加速谱能够有效地模拟万宁海洋大气环境,并有效推断和评估典型不锈钢材料在海洋大气环境下的腐蚀行为和寿命。
英文摘要:
      This paper aimsto provide an indoor accelerated environment spectrum that simulates the marine atmosphere of Wanning and predict the life of typical stainless steel materials. The corrosion resistance of the four stainless steels was macroscopically analyzed by weight loss method, and the types of corrosion products of the four stainless steels were analyzed by X-ray photoelectron spectroscopy (XPS), and the corrosion products of the four stainless steels were analyzed by scanning electron microscopy (SEM). Microscopic analysis of the products, macroscopic electrochemical analysis of four stainless steels by corrosion electrochemical method, and grey correlation method were used to study the correlation between indoor accelerated environmental spectrum and outdoor exposure test in Wanning marine atmospheric environment. The corrosion weight loss rates of the four stainless steels all decreased with the increase of the test time. Among them, the corrosion rate of 430 stainless steel had the most obvious reduction. All four types of stainless steel showed good corrosion resistance in the accelerated indoor corrosion test. The corrosion resistance from good to poor was 2205, 316L, 304, 430 stainless steel. XPS results showed that the very slight corrosion products of 304 stainless steel and 316L stainless steel were mainly Fe2O3 and Fe3O4. The corrosion products of 2205 stainless steel mainly included Fe2O3 and FeOOH or FeCr2O4. The corrosion products of 430 stainless steel were the corrosion products of typical stainless steel, mainly composed of Fe2O3, Fe3O4 and FeOOH composition. Electrochemical analysis showed that the capacitive arc radius of 304, 316L, and 2205 stainless steel increased in the early stage of the test and decreases in the later stage. The capacitive arc radius of 430 stainless steel decreased with the growth of the test period. The corrosion current density and pitting corrosion potential change trend of the four stainless steels were the same. The corrosion current density decreased in the early stage and increased in the later stage, and the pitting corrosion potential continues to increase, reaching a peak in the three cycles and then decreasing. Grey correlation analysis showed that the indoor accelerated test environment spectrum and Wanning outdoor exposure test conform to the principle of corrosion kinetics, and a corrosion prediction model was established. The prediction models for various stainless steels are T304=1 030.499t0.761 524, T316L=1 323.981t0.712 401, T2205=3 451.543t0.858 627, T430=2 813.697t0.632 819. The indoor acceleration spectrum that simulates Wanning's marine and atmospheric environment can effectively simulate Wanning's marine and atmospheric environment, and effectively infer and evaluate the corrosion and life of typical stainless steel materials in the marine atmosphere.
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