紫铜T2在高浓度H_2S模拟环境中的腐蚀行为及预测模型  

Corrosion Behavior and Prediction Model for Copper Exposed in a Simulated High H_2S Containing Environment

作　　者：朱志平[1] 银朝晖[1] 柳森[1] 肖剑峰[1] 

机构地区：[1]长沙理工大学化学与生物工程学院,长沙410114

出　　处：《中国腐蚀与防护学报》2015年第4期333-338,共6页Journal of Chinese Society For Corrosion and Protection

基　　金：湖南省自然科学基金项目(09JJ6067);湖南省科技攻关项目(2010GK3171)资助

摘　　要：采用SEM,EDS,XRD等研究了紫铜T2在高浓度H2S环境中的腐蚀行为和规律,同时建立了非等间距灰色GM(1,1)数学模型,并对该模型的精度和合理性进行了检验。结果表明,实验初期腐蚀增重量增加缓慢,后期增加迅速;腐蚀产物出现分层并且产生裂缝;腐蚀产物主要是Cu2S和Cu2O;数学模型具有较好的拟合精度和较高的预测可靠性。The corrosion behavior of copper exposed in a simulated high H2S containing atmo- sphere was investigated by weight change measurement, scanning electron microscope with energy dispersive spectrometry and X-ray diffraction, while an non-equal interval grey model GM（1, 1） was established, of which the precision and forecast dependability were evaluated. The results indi- cates that the weight gain of Cu increase slowly at the initial stage, whereas increase rapidly at the later stage. Surface observation shows that the corrosion products on Cu were layered with cracks. The corrosion products are made up of Cu2S and Cu20. The model GM（1, 1） exhibits good accura- cy of fitting and higher forecast reliability.

关 键 词：紫铜 H2S 腐蚀 预测模型 

分 类 号：TG174.3[金属学及工艺—金属表面处理]