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STUDY ON DESTROY PROCESS OF 1Cr18Ni9Ti STAINLESS STEEL SURFACE PASSIVE FILM BY HYDROGEN SULFIDE |
Liewei Liu;Qian Hu;Feng Guo |
武汉华中科技大学化学系 |
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Abstract The behavior of 1Cr18Ni9Ti stainless steel surface passive film have been studied by potentiodynamic、impendance and electron probe in 0.05 mol/L H2SO4 solution containing hydrogen sulfide.The results indica ted that the thickness of passive film attenuated with the increasing content of hydrogen sulfide,but the film did not destroy at a low concentration of hydroge n sulfide,the EIS characteristic of passive film remained.The passive film destr oyed at a high concentration of hydrogen sulfide (>200×10-6),and the surf ace film turned to sulfide film,then EIS characteristic changed as a result.
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Received: 21 September 2000
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Corresponding Authors:
Liewei Liu
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