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材料导报  2020, Vol. 34 Issue (Z2): 304-307    
  无机非金属及其复合材料 |
粉煤灰制硅酸盐防腐砖在复杂工况下的性能退化研究
赵宇航, 高莹, 王永旺, 陈东, 张云峰
神华准能资源综合开发有限公司研发中心,鄂尔多斯 010300
Study on Performance Degradation of Silicate Anticorrosive Brick Made by Fly Ash Under Complex Working Conditions
ZHAO Yuhang, GAO Ying, WANG Yongwang, CHEN Dong, ZHANG Yunfeng
Research Center of Shenhua Zhunneng Comprehensive Resource Development Co. Ltd, Erdos 010300, China
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摘要 采用粉煤灰制备硅酸盐防腐砖并模拟其在复杂工况下的使役行为,通过微观扫描测试、XRD物相分析及力学压缩试验进行材料性能的表征与分析。实验结果表明:在高温酸腐工况(温度200 ℃,31%盐酸溶液)中,硅酸盐防腐砖的微观表面覆盖一层络合凝胶层,砖体的强度退化率为7.0%;在高温酸腐磨蚀工况(200 ℃,转速为2 m/s)中,砖体表面的抗料浆腐蚀及磨损性能下降,局部形成腐蚀凹坑及孔洞等缺陷,压缩曲线呈现微量的屈服状台阶,砖体的强度退化率为17.8%。
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赵宇航
高莹
王永旺
陈东
张云峰
关键词:  硅酸盐防腐砖  复杂工况  腐蚀  性能退化  有限元分析    
Abstract: The corrosion behavior of silicate anticorrosive brick which was made by fly ash was simulated under complex working conditions. The performance of the brick was characterized and analyzed through scanning electron microscopic, X-ray diffraction (XRD) test and mechanical compression test. The experimental results showed that the surface of the silicate anticorrosive brick was covered with a layer of complex gel layer under the high temperature-acid condition (temperature 200 ℃, 31% HCl solution). The degradation rate of strength was about 7%. Under the high temperature-acid tribo-corrosion conditions(200 ℃, rotating speed of 2 m/s), the resistance of the slurry abrasion and erosion of the brick was decreased and some defects such as corrosive pits and holes were formed locally. The compression curve showed the shape of yield step. The strength degradation rate of brick was 17.8%.
Key words:  silicate anticorrosive brick    complex working conditions    corrosion    performance degradation    finite element analysis
               出版日期:  2020-11-25      发布日期:  2021-01-08
ZTFLH:  TB321  
基金资助: 国家科技部”十二五”科技支撑计划项目(2011BAA04B05)
通讯作者:  zgrwyw@126.com   
作者简介:  赵宇航,国家能源集团神华准能研发中心高级工程师。2013年毕业于中国科学院金属研究所,获得材料科学与工程专业工学博士学位,致力于“一步酸溶法”粉煤灰提取氧化铝的工艺中设备材料的腐蚀与防护研究。曾在学术期刊上发表论文5篇,授权国家专利10项,其中国家发明专利7项,撰写企业标准5项。研究工作主要开展“一步酸溶法”粉煤灰提取氧化铝的设备材料在模拟工况下腐蚀行为的基础理论,主持并参与国家及企业有关“一步酸溶法”粉煤灰提取氧化铝的科研项目10余项。王永旺,国家能源集团神华准能研发中心教授级高级工程师。毕业于中国矿业大学,主要主持煤炭开采及其共伴生资源综合利用技术研发工作。曾在学术期刊上发表论文27篇,授权国家专利51项,其中国家发明专利32项,主持撰写企业标准8项。研究工作主要为“一步酸溶法”的关键技术研发,煤系共伴生资源高值化利用理论及技术的应用,研制及开发相应的设备材料及环保技术,构建粉煤灰酸法提取氧化铝工业化实践体系。获得省部级一等奖一项,行业一等奖一项、二等奖二项、三等奖一项,神华集团科技一等奖三项、科技论文奖三项,并获内蒙古自治区科技标兵、鄂尔多斯市科技新星和草原英才、神华集团科技先进工作者等荣誉称号。
引用本文:    
赵宇航, 高莹, 王永旺, 陈东, 张云峰. 粉煤灰制硅酸盐防腐砖在复杂工况下的性能退化研究[J]. 材料导报, 2020, 34(Z2): 304-307.
ZHAO Yuhang, GAO Ying, WANG Yongwang, CHEN Dong, ZHANG Yunfeng. Study on Performance Degradation of Silicate Anticorrosive Brick Made by Fly Ash Under Complex Working Conditions. Materials Reports, 2020, 34(Z2): 304-307.
链接本文:  
http://www.mater-rep.com/CN/  或          http://www.mater-rep.com/CN/Y2020/V34/IZ2/304
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