| S30432和HR3C涂覆某电厂煤灰和合成煤灰高温腐蚀行为研究 |
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| 引用本文： | 汪元奎,刘光明,赵超,张民强,刘洪杰,黄丽琴,毛晓飞. S30432和HR3C涂覆某电厂煤灰和合成煤灰高温腐蚀行为研究[J]. 表面技术, 2019, 48(11): 365-371 |
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| 作者姓名： | 汪元奎 刘光明 赵超 张民强 刘洪杰 黄丽琴 毛晓飞 |
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| 作者单位： | 东方锅炉股份有限公司材料研究所,四川 自贡,643001;南昌航空大学 材料科学与工程学院,南昌,330063;国电科学技术研究院,武汉,430066 |
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| 摘 要： | 目的 研究S30432和HR3C涂覆某电厂煤灰和合成煤灰后在700 ℃模拟锅炉气氛中的腐蚀行为，分析两种材料的腐蚀机理。方法 将表面涂覆煤灰的S30432、HR3C试样置于700 ℃含0.3%SO2模拟锅炉烟气环境中腐蚀2000 h，间隔一定时间取出样品称量，获得腐蚀动力学曲线。腐蚀2000 h后，清洗去除样品表面的腐蚀产物，获得样品腐蚀后的损失量，计算两种材料在合成煤灰和某电厂煤灰中的腐蚀加速比。采用XRD、SEM和EDS对腐蚀产物成分、微观形貌和结构进行分析。结果 在某电厂煤灰环境中，S30432和HR3C的腐蚀产物均为Fe2O3、Cr2O3和FeCr2O4；在合成煤灰中，S30432残留腐蚀产物主要为FeCr2O4和FeS，而HR3C则主要为Fe2O3、Cr2O3。在某电厂煤灰中，S30432和HR3C表面生成了较厚的腐蚀产物层，且腐蚀产物层中有大量孔洞；在合成煤灰中，S30432、HR3C腐蚀产物几乎剥落殆尽。结论 由于HR3C中的Cr和Ni含量较高，其耐腐蚀性能明显优于S30432。由于合成煤灰中硫酸盐含量较高，因此合成煤灰中S30432和HR3C的腐蚀明显加快，S30432和HR3C在合成煤灰和某电厂煤灰中腐蚀的加速比分别为3.03和3.28。
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| 关 键 词： | S30432 HR3C 高温腐蚀 煤灰 加速比 |
| 收稿时间： | 2019-03-12 |
| 修稿时间： | 2019-11-20 |
High Temperature Corrosion Behavior of S30432 and HR3C Coated with Power Plant Coal Ash and Synthetic Coal Ash |
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| WANG Yuan-kui,LIU Guang-ming,ZHAO Chao,ZHANG Min-qiang,LIU Hong-jie,HUANG Li-qin and MAO Xiao-fei. High Temperature Corrosion Behavior of S30432 and HR3C Coated with Power Plant Coal Ash and Synthetic Coal Ash[J]. Surface Technology, 2019, 48(11): 365-371 |
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| Authors: | WANG Yuan-kui LIU Guang-ming ZHAO Chao ZHANG Min-qiang LIU Hong-jie HUANG Li-qin MAO Xiao-fei |
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| Affiliation: | 1.Material Research Institute, Dongfang Boiler Group Co., Ltd, Zigong 643001, China; 2.School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China; 3.Guodian Science and Technology Research Institute, Wuhan 430066, China,1.Material Research Institute, Dongfang Boiler Group Co., Ltd, Zigong 643001, China; 2.School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China; 3.Guodian Science and Technology Research Institute, Wuhan 430066, China,1.Material Research Institute, Dongfang Boiler Group Co., Ltd, Zigong 643001, China; 2.School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China; 3.Guodian Science and Technology Research Institute, Wuhan 430066, China,1.Material Research Institute, Dongfang Boiler Group Co., Ltd, Zigong 643001, China; 2.School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China; 3.Guodian Science and Technology Research Institute, Wuhan 430066, China,1.Material Research Institute, Dongfang Boiler Group Co., Ltd, Zigong 643001, China; 2.School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China; 3.Guodian Science and Technology Research Institute, Wuhan 430066, China,1.Material Research Institute, Dongfang Boiler Group Co., Ltd, Zigong 643001, China; 2.School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China; 3.Guodian Science and Technology Research Institute, Wuhan 430066, China and 1.Material Research Institute, Dongfang Boiler Group Co., Ltd, Zigong 643001, China; 2.School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China; 3.Guodian Science and Technology Research Institute, Wuhan 430066, China |
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| Abstract: | |
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| Keywords: | S30432 steel HR3C steel high temperature corrosion coal ash acceleration ratio |
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