Oxidation and Hot Corrosion behaviour of Modified NiCoCrAlY Coatings

Meenu, Srivastava and Balaraju, JN and Ravisankar, B (2013) Oxidation and Hot Corrosion behaviour of Modified NiCoCrAlY Coatings. In: THERMANS 2013, 2013-12-19, Homi Bhabha National Institute, Mumbai.

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    Abstract

    High temperature components such as moving and stationary blades of jet engines and gas turbines, combustors, boiler tubes are often surface coated for improving their xidation and hot corrosion resistance. An oxide film protecting the substrate is formed by an overlay coating layer of type MCrAlY. The MCrAlY coating can be obtained by various methods like plasma spraying, electron–beam physical vapour deposition, high velocity oxy fuel etc. Despite the flexibility of these processes their infrastructure and the operating costs are high. Electrodeposition is a simple method to develop composite coatings and has been used in the present study to develop Ni/NiCoCrAlY coatings.

    Item Type: Conference or Workshop Item (Paper)
    Uncontrolled Keywords: Corrosion behaviour;electrodeposition;NiCoCrAlY Coatings
    Subjects: CHEMISTRY AND MATERIALS > Composite Materials
    Division/Department: Surface Engineering Division, Surface Engineering Division, Other
    Depositing User: Mrs Manoranjitha M D
    Date Deposited: 03 Aug 2015 09:38
    Last Modified: 03 Aug 2015 09:38
    URI: http://nal-ir.nal.res.in/id/eprint/12275

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