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1. Jiangsu Fangtian Electric Technology Co. Ltd.,Nanjing,China,211102
2. MOE Key Laboratory of Thermo-Fluid Science and Engineering, Xi'an Jiaotong University,Xi'an,China,710049
3. School of Mechanical Engineering, Changzhou University,Changzhou,China,213164
Published:2019
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S and SO
DOI:
S and SO DOI: 10.1016/j.cjche.2018.12.020.
Aiming at the high temperature corrosion in a coal-fired boiler
the effect of H
2
on the corrosion of 12Cr1MoV under the water wall condition has been investigated by experiments. The results indicate that H
S can promote the corrosion significantly
and the coarse porous oxide film formed cannot stop the progress of corrosion. While SO
presents little effect on the corrosion. The main composition of the surface of 12Cr1MoV corrosion products is Fe
O
3
. With H
S in the atmosphere
the corrosion gradually develops into deeper layers by forming FeS
FeO and Fe
alternately. The corrosion rate is doubled for every 50℃ increase in temperature at 400-500℃.
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