紫铜T2在高浓度H<sub>2</sub>S模拟环境中的腐蚀行为及预测模型

doi:10.11902/1005.4537.2014.154

中国腐蚀与防护学报

2015, Vol. 35

Issue (4): 333-338 DOI: 10.11902/1005.4537.2014.154

本期目录 | 过刊浏览

紫铜T2在高浓度H₂S模拟环境中的腐蚀行为及预测模型

朱志平(

),银朝晖,柳森,肖剑峰

Corrosion Behavior and Prediction Model for Copper Exposed in a Simulated High H₂S Containing Environment

Zhiping ZHU(

),Zhaohui YIN,Sen LIU,Jianfeng XIAO

School of Chemical and Biological Engineering,Changsha University of Science & Technology, Changsha 410114, China

全文: PDF(2118 KB) HTML

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。

关键词 ：紫铜, H₂S, 腐蚀, 预测模型

Abstract：

The corrosion behavior of copper exposed in a simulated high H₂S containing atmosphere 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 indicates 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 Cu₂O. The model GM(1, 1) exhibits good accuracy of fitting and higher forecast reliability.

Key words： copper H₂S corrosion prediction model

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

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引用本文:

朱志平,银朝晖,柳森,肖剑峰. 紫铜T2在高浓度H₂S模拟环境中的腐蚀行为及预测模型[J]. 中国腐蚀与防护学报, 2015, 35(4): 333-338.
Zhiping ZHU, Zhaohui YIN, Sen LIU, Jianfeng XIAO. Corrosion Behavior and Prediction Model for Copper Exposed in a Simulated High H₂S Containing Environment. Journal of Chinese Society for Corrosion and protection, 2015, 35(4): 333-338.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2014.154 或 https://www.jcscp.org/CN/Y2015/V35/I4/333

图1 模拟大气腐蚀装置系统

图2 25 ℃,75%RH, 10 mg/m3 H2S环境下紫铜T2腐蚀增重随时间的变化

图3 腐蚀720 h后紫铜T2表面腐蚀产物微观形貌图

图4 腐蚀720 h后紫铜T2腐蚀产物的EDS结果

图5 腐蚀720 h后紫铜T2腐蚀产物的XRD谱

图6 紫铜T2腐蚀增重量随时间的实测值与预测值

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