|
|
|
| High Temperature Corrosion Behavior of Sanicro 25 Steel in High-sulfur Coal Ash/simulated Flue Gas |
GUAN Yu1, LIU Guangming1( ), ZHANG Minqiang2, LIU Huanhuan1, LIU Zhihao1, GONG Bingbing1 |
1.School of Material Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China
2.Dongfang Boiler Group Co. Ltd., Material Research Institute, Zigong 643001, China |
|
|
|
|
Abstract The high temperature corrosion behavior of Sanicro 25 steel beneath deposition of artificial high-sulfur coal ash in an simulated boiler atmosphere was studied at 650 and 700 ℃ for 2000 h. Meanwhile, samples were taken out at certain intervals, cleaned and weighed, to obtain corrosion kinetics data. Further, the microstructure, element distribution and phase composition of the corrosion products were characterized by means of scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The results indicate that the corrosion rate of Sanicro 25 steel accelerated with the increasing temperature. A relative complete and dense protective oxide scale was formed on the surface of the alloy at 650 ℃, thus the alloy had good corrosion resistance. The corrosion products were composed mainly of Cr2O3 and Fe2O3. A certain degree of hot corrosion occurred at 700 ℃. The corrosion process could be divided into high temperature oxidation stage and molten sulfate accelerated corrosion stage, the later stage corresponds to molten salts induced destroy of the oxide scale, while a number of corrosion products peeled off and the alloy had obvious mass loss.
|
|
Received: 06 July 2021
|
|
|
| Fund: National Natural Science Fundation of China(51961028) |
|
Corresponding Authors:
LIU Guangming
E-mail: gemliu@126.com
|
About author: LIU Guangming, E-mail: gemliu@126.com
|
| 1 |
Liu L L. Analysis on the influencing factors of China's carbon market under the background of carbon neutralization [J]. Energy, 2021, (6): 67
|
|
刘兰兰. 碳中和背景下我国碳市场影响因素分析 [J]. 能源, 2021, (6): 67
|
| 2 |
China Electricity Council. China Electric Power Industry Annual Development Report 2019 [M]. Beijing: China Electric Power Press, 2021: 120
|
|
中国电力企业联合会. 2021年中国电力行业年度发展报告 [M]. 北京: 中国电力出版社, 2021: 120
|
| 3 |
Wang Q, Wang W L, Liu M, et al. Development and prospect of (ultra) supercritical coal-fired power generation technology [J]. Therm. Power Gen., 2021, 50(2): 1
|
|
王倩, 王卫良, 刘敏 等. 超 (超) 临界燃煤发电技术发展与展望 [J]. 热力发电, 2021, 50(2): 1
|
| 4 |
Liu R W, Xiao P, Zhong L, et al. Research progress of advanced 700 ℃ ultra-supercritical coal-fired power generation technology [J]. Therm Power Gen., 2017, 46(9): 1
|
|
刘入维, 肖平, 钟犁 等. 700 ℃超超临界燃煤发电技术研究现状 [J]. 热力发电, 2017, 46(9): 1
|
| 5 |
Mao J X. Latest development of high-temperature metallic materials in 700 ℃ ultra-supercritical units [J]. Elect. Power Const., 2013, 34(8): 69
|
|
毛健雄. 700 ℃超超临界机组高温材料研发的最新进展 [J]. 电力建设, 2013, 34(8): 69
|
| 6 |
Xie X S, Ai Z Q, Chi C Y, et al. R & D of the new type SP2215 austenitic heat-resistant steel for servicing 620~650 ℃ boiler super heater/reheater [J]. Steel Pipe, 2018, 47(1): 23
|
|
谢锡善, 艾卓群, 迟成宇 等. 620~650 ℃锅炉过热器/再热器用新型奥氏体耐热钢SP2215的研发 [J]. 钢管, 2018, 47(1): 23
|
| 7 |
Zhang X, Cai W H, Du S M, et al. Research situation and application prospect of Sanicro 25 heat-resistant steel [J]. Mater. Mech. Eng., 2019, 43(1): 1
|
|
张新, 蔡文河, 杜双明 等. Sanicro 25耐热钢的研究现状及应用前景 [J]. 机械工程材料, 2019, 43(1): 1
|
| 8 |
Zhang M Q, Huang L Q, Liu G M, et al. High temperature corrosion behavior of S30432 in different coal ash/flue gas [J]. Surf. Technol., 2018, 47(8): 251
|
|
张民强, 黄丽琴, 刘光明 等. S30432在不同煤灰/烟气环境中的高温腐蚀行为研究 [J]. 表面技术, 2018, 47(8): 251
|
| 9 |
Li P, Qin P, Pang S J, et al. Study on corrosion behavior of Super304H steel in simulated furnace atmosphere [J]. Trans. Mate. Heat Treat., 2015, 36(10): 210
|
|
李萍, 秦鹏, 庞胜娇 等. Super304H在模拟烟气环境下的腐蚀行为 [J]. 材料热处理学报, 2015, 36(10): 210
|
| 10 |
Zhao S Q, Xie X S. High temperature corrosion of superheater tube materials in pulverized coal-fired environment [J]. Spec. Steel, 2003, 24(6): 36
|
|
赵双群, 谢锡善. 粉煤燃烧环境中过热器管材的高温腐蚀 [J]. 特殊钢, 2003, 24(6): 36
|
| 11 |
Li J, Zhou R C, Tang L Y, et al. Fireside corrosion behaivor of HR3C steel in simulated coal-fired boiler atmosphere with high sulfur concentration [J]. Therm. Power Gen., 2016, 45(1): 70
|
|
李江, 周荣灿, 唐丽英 等. HR3C钢在模拟燃用高硫煤锅炉环境中的高温烟气腐蚀行为 [J]. 热力发电, 2016, 45(1): 70
|
| 12 |
Li J, Zhou R C, Tang L Y, et al. Fireside corrosion behavior of Haynes 282 ahoy in simulated boiler environments firing high sulfur content coal [J]. Therm. Power Gen., 2017, 46(10): 30
|
|
李江, 周荣灿, 唐丽英 等. 模拟燃用高硫煤锅炉烟气环境中Haynes 282合金的腐蚀行为 [J]. 热力发电, 2017, 46(10): 30
|
| 13 |
Li T F. High Temperature Corrosion and Hot Chemistry of Metals [M]. Beijing: Chemical Industry Press, 2003: 257
|
|
李铁藩. 金属高温氧化和热腐蚀 [M]. 北京: 化学工业出版社, 2003: 257
|
| 14 |
Li P, Qin P, Zhao J, et al. Hot-corrosion behavior of HR3C pre-coated alkali metal sulphate in SO2 atmosphere [J]. J. Mater. Eng., 2017, 45(1): 43
|
|
李萍, 秦鹏, 赵杰 等. 预涂覆碱金属硫酸盐的HR3C在含SO2气氛中的热腐蚀行为 [J]. 材料工程, 2017, 45(1): 43
|
| 15 |
Wang Y K, Liu G M, Zhao C, et al. High temperature corrosion behavior of S30432 and HR3C coated with power plant coal ash and synthetic coal ash [J]. Surf. Technol., 2019, 48(11): 365
|
|
汪元奎, 刘光明, 赵超 等. 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
|
| 16 |
Liu W, Huang J Y, Lu J T, et al. The corrosion behavior of a newly developed Ni-Fe-Cr based alloy in simulative flue gas environment [J]. Mater. Rep., 2017, 31(1): 415
|
|
刘武, 黄锦阳, 鲁金涛 等. 一种新型Ni-Fe-Cr基合金在模拟锅炉烟气中的腐蚀行为研究 [J]. 材料导报, 2017, 31(1): 415
|
| 17 |
Jiang Y, Zhao S Q, Li W Y. Corrosion behavior of modified Ni based alloy INCONEL 740 in simulated coal-ash/flue-gas environments [J]. Mater. Mech. Eng., 2008, 32(12): 29
|
|
江涌, 赵双群, 李维银. 改进型INCONEL740镍基合金在模拟煤灰和烟气环境中的腐蚀行为 [J]. 机械工程材料, 2008, 32(12): 29
|
| 18 |
Li Y, Lu J T, Yang Z, et al. Corrosive behaviors of austenitic stainless steels for boiler in simulated coal ash and high sulfur flue gas [J] J. Chin. Soc. Power. Eng., 2017, 37: 156
|
|
李琰, 鲁金涛, 杨珍 等. 锅炉奥氏体不锈钢在模拟煤灰和高硫烟气环境中腐蚀行为的研究 [J]. 动力工程学报, 2017, 37: 156
|
| 19 |
Zhang M Q, Li J, Liu Y G. High temperature corrosion behavior of Sanicro25 in different coal ash / flue gas environments [J]. Dongfang Boiler, 2019, (1): 5
|
|
张民强, 李健, 刘宇钢. Sanicro25在不同煤灰/烟气环境中的咼温腐蚀行为研究 [J]. 东方锅炉, 2019, (1): 5
|
| 20 |
Liu G M, Liu K S, Mao X F, et al. Hot corrosion of T91 steel in molten mixture of KCl+Na2SO4+K2SO4 [J]. J. Chin. Soc. Corros. Prot., 2017, 37: 23
|
|
刘光明, 刘康生, 毛晓飞 等. T91钢在KCl+Na2SO4+K2SO4熔融盐中的热腐蚀行为研究 [J]. 中国腐蚀与防护学报, 2017, 37: 23
|
| 21 |
Xiong Y, Liu G M, Zhan F Y, et al. Hot corrosion and failure behavior of three thermal spraying coatings in simulated atmosphere/coal ash environment [J]. J. Chin. Soc. Corros. Prot., 2021, 41: 369
|
|
熊义, 刘光明, 占阜元 等. 3种热喷涂涂层在模拟气氛/煤灰环境下的热腐蚀及失效行为 [J]. 中国腐蚀与防护学报, 2021, 41: 369
|
| 22 |
Birks N, Meier G H, Pettit F S. Introduction to the High Temperature Oxidation of Metals [M]. Cambridge: Cambridge University Press, 2006
|
| 23 |
Zeng Z, Natesan K, Cai Z, et al. Effect of coal ash on the performance of alloys in simulated oxy-fuel environments [J]. Fuel, 2014, 117: 133
doi: 10.1016/j.fuel.2013.09.021
|
| 24 |
Li Y, Lu J T, Yang Z, et al. Effect of sulfur content on corrosion behavior of candidate alloys used for 700 ℃ level A-USC boiler in simulated coal ash and flue gas environments [J]. J. Chin. Soc. Corros. Prot., 2016, 36: 505
|
|
李琰, 鲁金涛, 杨珍 等. 烟气S含量对700℃超超临界锅炉候选合金腐蚀行为影响 [J]. 中国腐蚀与防护学报, 2016, 36: 505
|
| 25 |
Qi H B, Liu H P, He Y D, et al. A research on the mechanism of corrosion of Zn Fe alloy electrodeposits [J]. Corros. Sci. Prot. Technol., 1996, 8: 31
|
|
齐慧滨, 刘海平, 何业东 等. 金属高温硫化研究进展 [J]. 腐蚀科学与防护技术, 1996, 8: 31
|
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
