Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes
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2014
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my.unimap-351172014-06-05T07:40:20Z Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes Shaiful Rizam, Shamsudin Azmi, Rahmat, Assoc. Prof. Dr. Mahdi, Che Isa Mohd Nazree, Derman, Dr. Abdul Razak, Daud nazree@unimap.edu.my shaiful@unimap.edu.my azmirahmat@unimap.edu.my Corrosion Electrochemistry Magnesium Link to publisher's homepage at http://www.scientific.net/ 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. 2014-06-05T07:40:20Z 2014-06-05T07:40:20Z 2013 Article Advanced Materials Research, vol.795, 2013, pages 530-534 1662-8985 http://www.scientific.net/AMR.795.530 http://dspace.unimap.edu.my:80/dspace/handle/123456789/35117 10.4028/www.scientific.net/AMR.795.530 en Trans Tech Publications |
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English |
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Corrosion Electrochemistry Magnesium |
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Corrosion Electrochemistry Magnesium Shaiful Rizam, Shamsudin Azmi, Rahmat, Assoc. Prof. Dr. Mahdi, Che Isa Mohd Nazree, Derman, Dr. Abdul Razak, Daud Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes |
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Link to publisher's homepage at http://www.scientific.net/ |
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nazree@unimap.edu.my |
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nazree@unimap.edu.my Shaiful Rizam, Shamsudin Azmi, Rahmat, Assoc. Prof. Dr. Mahdi, Che Isa Mohd Nazree, Derman, Dr. Abdul Razak, Daud |
| format |
Article |
| author |
Shaiful Rizam, Shamsudin Azmi, Rahmat, Assoc. Prof. Dr. Mahdi, Che Isa Mohd Nazree, Derman, Dr. Abdul Razak, Daud |
| author_sort |
Shaiful Rizam, Shamsudin |
| title |
Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes |
| title_short |
Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes |
| title_full |
Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes |
| title_fullStr |
Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes |
| title_full_unstemmed |
Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes |
| title_sort |
electrochemical corrosion behaviour of mg-(ca,mn) sacrificial anodes |
| publisher |
Trans Tech Publications |
| publishDate |
2014 |
| url |
http://dspace.unimap.edu.my:80/dspace/handle/123456789/35117 |
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1643797711561949184 |
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13.214268 |