ANALYSIS ON CORROSION BEHAVIORS OF THE BOILER FOR COMBUSTING WITH YELLOW PHOSPHORIC TAIL GAS

J Chin Soc Corr Pro

2011, Vol. 31

Issue (1): 51-55 DOI:

Research Articles

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ANALYSIS ON CORROSION BEHAVIORS OF THE BOILER FOR COMBUSTING WITH YELLOW PHOSPHORIC TAIL GAS

GAO Huaping¹, WU Fei¹, LONG Jinming¹, JIE Xingdi¹, ZHANG Dongping²

1. School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093
2. Kunming Boiler Co., Ltd., Kunming 650217

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Abstract The corrosion properties of 316L, 304 stainless steel and 20^# boiler steel (20g) in a simulated corrosive atmosphere were investigated by means of accelerated corrosion test. The results show that corrosion rate of 316L was significantly lower than that of 304 and 20g in the simulated atmosphere. From temperature 250℃ to 300℃, the acid dew point corrosion became serious. Cavities were observed in the surface of 304 after the dew point corrosion, at where occurred pitting corrosion.

Key words: yellow phosphoric tail gas boiler dew point corrosion stainless steel pitting corrosion

Received: 17 September 2009

ZTFLH:

TQ126.35

Corresponding Authors: GAO Huaping E-mail: ynkmghp@263.net

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GAO Huaping, WU Fei, LONG Jinming, JIE Xingdi, ZHANG Dongping. ANALYSIS ON CORROSION BEHAVIORS OF THE BOILER FOR COMBUSTING WITH YELLOW PHOSPHORIC TAIL GAS. J Chin Soc Corr Pro, 2011, 31(1): 51-55.

URL:

https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2011/V31/I1/51

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