• Login
    View Item 
    •   Home
    • Office of Sponsored Research (OSR)
    • KAUST Funded Research
    • Publications Acknowledging KAUST Support
    • View Item
    •   Home
    • Office of Sponsored Research (OSR)
    • KAUST Funded Research
    • Publications Acknowledging KAUST Support
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    A Comparative Study on the Corrosion Performance of Ni47Ti49Co4 and Ni51Ti49 Shape Memory Alloys in Simulated Saliva Solution for Dental Applications

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Article
    Authors
    Ahmed, Rasha A.
    Date
    2016-07-21
    Permanent link to this record
    http://hdl.handle.net/10754/678439
    
    Metadata
    Show full item record
    Abstract
    In this study, the corrosion behavior of Ni47Ti49Co4 shape memory alloy (SMA) was investigated in simulated saliva solution with the binary alloy Ni51Ti49 as a reference. The surface morphology and the chemical composition of the oxide films were characterized by scanning electron microscopy and X-ray photoelectron spectroscopy before and after immersion in the test solutions, respectively. The results showed that the ternary alloy was less affected by the test solution, owning to the formation of passive layer composed mainly of the oxides of titanium and cobalt in several oxidation states. Cyclic voltammetry, electrochemical impedance spectroscopy and potentiodynamic polarization measurements affirmed that the passive oxide film significantly improved the corrosion resistance of Ni47Ti49Co4 SMAs as demonstrated by the smaller corrosion current density, larger resistance and smaller capacitance. Consequently, alloying with cobalt, which has paramount importance in enhancing the passive layer, expands the use of Ni47Ti49Co4 SMAs in dental work as new nitinol alloys with high corrosion resistances.
    Citation
    Ahmed, R. A. (2016). A Comparative Study on the Corrosion Performance of Ni47Ti49Co4 and Ni51Ti49 Shape Memory Alloys in Simulated Saliva Solution for Dental Applications. Acta Metallurgica Sinica (English Letters), 29(11), 1001–1010. doi:10.1007/s40195-016-0463-5
    Sponsors
    The author is grateful for the financial support of Chemistry Department (Taif University, Saudi Arabia). The author would like to thank Core labs in King Abdullah University of Science and Technology (KAUST) for performing SEM and XPS analysis.
    Publisher
    Springer Science and Business Media LLC
    Journal
    ACTA METALLURGICA SINICA-ENGLISH LETTERS
    DOI
    10.1007/s40195-016-0463-5
    Additional Links
    http://link.springer.com/10.1007/s40195-016-0463-5
    ae974a485f413a2113503eed53cd6c53
    10.1007/s40195-016-0463-5
    Scopus Count
    Collections
    Publications Acknowledging KAUST Support

    entitlement

     
    DSpace software copyright © 2002-2023  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.