OBSERVATION OF THE EFFECT OF SHOT BLASTED ON STEAM OXIDATIONRESISTANCE OF TP304H STEEL BOILER TUBING

J Chin Soc Corr Pro

2003, Vol. 23

Issue (3): 171-174 DOI:

Research Report

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OBSERVATION OF THE EFFECT OF SHOT BLASTED ON STEAM OXIDATIONRESISTANCE OF TP304H STEEL BOILER TUBING

Xingeng Li;Jiawen He

西安交通大学

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Xingeng Li; Jiawen He. OBSERVATION OF THE EFFECT OF SHOT BLASTED ON STEAM OXIDATIONRESISTANCE OF TP304H STEEL BOILER TUBING. J Chin Soc Corr Pro, 2003, 23(3): 171-174 .

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Abstract TP304H(0Cr19Ni9)steels with and without shot blast ing were tested in a reheater of 1000 t/h boiler for 7552 hours.The results sho w that shot blasting can decrease the thickness of oxide scale,and enhance the c ompactness of oxidation layer.Cr concentrating in the surface can prevent the ou t diffusion of Fe,and decrease the oxidation speed,thus effectively improve the steam oxidation resistance.The effects of shot blasted on oxidation mechanism ar e analyzed,and the oxidation process of the scale phase is also discussed.

Key words: boiler shot blasted steam oxidation refr actory steel corrosion

Received: 26 June 2002

ZTFLH:

TG174.44

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2003/V23/I3/171

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