Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes

Shaiful Rizam Shamsudin, Azmi Rahmat, Mahdi Che Isa, Mohd Nazree Derman, Abdul Razak Daud

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    The aim of the study is to identify the effect of Ca in Mg-Mn alloy on electrochemical corrosion behavior for the development of high performance sacrificial anode. Mg alloys were fabricated by casting technique under an inert atmosphere. 0.35 ~ 1.11 wt.% of Ca were added as alloying element. The finding shows that the addition of small Ca in Mg-Mn anodes was found not significantly affecting the corrosion rate. However, small content of Ca was as much as necessary improving electronegativity of open circuit potential and modifying anodic polarization in promoting the instabilities of surface passive layer hence results in the further dissolution process between ion and alloy species underneath. No passivation occurs on the standard samples. Pitting profile only occur on Mg-Mn anode that has lower Ca content (0.35 wt. %). An XRD result shows no present of Mg2Ca phase on the as-cast anode containing 1.11 wt. % Ca. As a conclusion, the influence of small content of Ca was profoundly modifying electrochemically behaviour of Mg containing Mn anodes except corrosion rate.

    Original languageEnglish
    Title of host publicationAdvanced Materials Research
    Pages530-534
    Number of pages5
    Volume795
    DOIs
    Publication statusPublished - 2013
    Event2nd International Conference on Sustainable Materials, ICoSM 2013 - Penang
    Duration: 26 Mar 201327 Mar 2013

    Publication series

    NameAdvanced Materials Research
    Volume795
    ISSN (Print)10226680

    Other

    Other2nd International Conference on Sustainable Materials, ICoSM 2013
    CityPenang
    Period26/3/1327/3/13

    Fingerprint

    Electrochemical corrosion
    Anodes
    Corrosion rate
    Electronegativity
    Anodic polarization
    Alloying elements
    Pitting
    Passivation
    Casting
    Dissolution
    Networks (circuits)
    Ions

    Keywords

    • Corrosion
    • Electrochemistry
    • Magnesium

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Shamsudin, S. R., Rahmat, A., Isa, M. C., Derman, M. N., & Daud, A. R. (2013). Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes. In Advanced Materials Research (Vol. 795, pp. 530-534). (Advanced Materials Research; Vol. 795). https://doi.org/10.4028/www.scientific.net/AMR.795.530

    Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes. / Shamsudin, Shaiful Rizam; Rahmat, Azmi; Isa, Mahdi Che; Derman, Mohd Nazree; Daud, Abdul Razak.

    Advanced Materials Research. Vol. 795 2013. p. 530-534 (Advanced Materials Research; Vol. 795).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Shamsudin, SR, Rahmat, A, Isa, MC, Derman, MN & Daud, AR 2013, Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes. in Advanced Materials Research. vol. 795, Advanced Materials Research, vol. 795, pp. 530-534, 2nd International Conference on Sustainable Materials, ICoSM 2013, Penang, 26/3/13. https://doi.org/10.4028/www.scientific.net/AMR.795.530
    Shamsudin SR, Rahmat A, Isa MC, Derman MN, Daud AR. Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes. In Advanced Materials Research. Vol. 795. 2013. p. 530-534. (Advanced Materials Research). https://doi.org/10.4028/www.scientific.net/AMR.795.530
    Shamsudin, Shaiful Rizam ; Rahmat, Azmi ; Isa, Mahdi Che ; Derman, Mohd Nazree ; Daud, Abdul Razak. / Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes. Advanced Materials Research. Vol. 795 2013. pp. 530-534 (Advanced Materials Research).
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    AU - Daud, Abdul Razak

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