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铁素体钢在火侧腐蚀环境中的高温性能:温度与沉积物

High-Temperature Performance of Ferritic Steels in Fireside Corrosion Regimes: Temperature and Deposits.

作者信息

Dudziak T, Hussain T, Simms N J

机构信息

1Foundry Research Institute, Centre for High Temperature Studies, Zakopiańska 73, 30-418 Kraków, Poland.

2Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD UK.

出版信息

J Mater Eng Perform. 2017;26(1):84-93. doi: 10.1007/s11665-016-2423-7. Epub 2016 Nov 17.

DOI:10.1007/s11665-016-2423-7
PMID:32355439
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7175603/
Abstract

The paper reports high temperature resistance of ferritic steels in fireside corrosion regime in terms of temperature and deposits aggressiveness. Four candidate power plant steels: 15Mo3, T22, T23 and T91 were exposed under simulated air-fired combustion environment for 1000 h. The tests were conducted at 600, 650 and 700 °C according to deposit-recoat test method. Post-exposed samples were examined via dimensional metrology (the main route to quantify metal loss), and mass change data were recorded to perform the study of kinetic behavior at elevated temperatures. Microstructural investigations using ESEM-EDX were performed in order to investigate corrosion degradation and thickness of the scales. The ranking of the steels from most to the least damage was 15Mo3 > T22 > T23 > T91 in all three temperatures. The highest rate of corrosion in all temperatures occurred under the screening deposit.

摘要

该论文从温度和沉积物侵蚀性方面报道了铁素体钢在炉膛腐蚀工况下的耐高温性能。四种候选电厂钢:15Mo3、T22、T23和T91在模拟空气燃烧环境下暴露1000小时。根据沉积物再涂覆试验方法,在600、650和700℃下进行试验。通过尺寸计量(量化金属损失的主要途径)对暴露后的样品进行检查,并记录质量变化数据以研究高温下的动力学行为。使用环境扫描电子显微镜-能谱仪(ESEM-EDX)进行微观结构研究,以研究腐蚀降解和氧化皮厚度。在所有三个温度下,钢的损伤程度从高到低的排序为15Mo3>T22>T23>T91。在所有温度下,最高腐蚀速率出现在筛选沉积物下。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/e69c3fd21143/11665_2016_2423_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/ce1f662539d1/11665_2016_2423_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/2dbddb5ec983/11665_2016_2423_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/1321d8cf4cfa/11665_2016_2423_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/a5791cd461aa/11665_2016_2423_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/4d8e5a8d2b43/11665_2016_2423_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/84313d1a4f09/11665_2016_2423_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/e69c3fd21143/11665_2016_2423_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/ce1f662539d1/11665_2016_2423_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/2dbddb5ec983/11665_2016_2423_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/1321d8cf4cfa/11665_2016_2423_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/a5791cd461aa/11665_2016_2423_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/4d8e5a8d2b43/11665_2016_2423_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/84313d1a4f09/11665_2016_2423_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8855/7175603/e69c3fd21143/11665_2016_2423_Fig7_HTML.jpg

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