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EFFECTS OF PRE-CHARGED HYDROGEN ON PASSIVE FILM OF TYPE 310 STAINLESS STEEL |
Yiming Zeng;;; |
北京科技大学 材料物理系 |
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Abstract The effects of hydrogen on anodic process,film formation surface character and pitting-resistance of passive film on type 310 stainless steel were theoretically analyzed and experimentally studied by use of electrochemical and STM methods.The results showed that hydrogen can decrease the inner energy of the stainless steel and its corrosion potential,narrow the passivation region and increase its anodic dissolution; decrease the reactive resistance,enhance the passive current density;reduce crystallinity of the film in nanometer scale and the pitting resistance. These influences were more noticable when increasing the pre-charged hydrogen content in the steel.
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Received: 15 September 1998
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Corresponding Authors:
Yiming Zeng
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