書誌事項
- 公開日
- 2007-01
- 権利情報
-
- https://www.elsevier.com/tdm/userlicense/1.0/
- DOI
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- 10.1016/j.corsci.2006.05.003
- 公開者
- Elsevier BV
この論文をさがす
説明
Passivity of alloys containing corrosion-resistant elements were reviewed. Chromium and valve metals except aluminum form stable oxyhydroxide films even in aggressive hydrochloric acids. Molybdenum forms a passive MoO2 film in the active region of stainless steels and hence decreases the active dissolution current. In the passive region of transition metals and valve metals, molybdenum is generally in the transpassive state and dissolved. However, if the outer oxyhydroxide film is stable the inner MoO2 film is protected by the outer oxyhydroxide film and the MoO2 film acts as the effective barrier against diffusion of matters through the film. Thus the passive current density of 30Cr–2Mo ferritic stainless steel is more than two orders of magnitude lower than that of 30Cr steel without molybdenum in 1 M HCl. 2006 Elsevier Ltd. All rights reserved.
収録刊行物
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- Corrosion Science
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Corrosion Science 49 (1), 42-52, 2007-01
Elsevier BV