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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.
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Received: 17 September 2009
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Corresponding Authors:
GAO Huaping
E-mail: ynkmghp@263.net
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