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

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Main Authors: Shaiful Rizam, Shamsudin, Azmi, Rahmat, Assoc. Prof. Dr., Mahdi, Che Isa, Mohd Nazree, Derman, Abdul Razak, Daud
Other Authors: rizam@unimap.edu.my
Format: Article
Language:English
Published: Trans Tech Publications 2014
Subjects:
Corrosion
Electrochemistry
Magnesium
Online Access:http://dspace.unimap.edu.my:80/dspace/handle/123456789/35808
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spelling my.unimap-358082014-06-23T03:55:55Z Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes Shaiful Rizam, Shamsudin Azmi, Rahmat, Assoc. Prof. Dr. Mahdi, Che Isa Mohd Nazree, Derman Abdul Razak, Daud rizam@unimap.edu.my azmirahmat@unimap.edu.my mahdi.cheisa@stride.gov.my) nazree@unimap.edu.my. ard@ukm.my Corrosion Electrochemistry Magnesium Link to publisher's homepage at http://www.ttp.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. 2014-06-23T03:55:55Z 2014-06-23T03:55:55Z 2013 Article Advanced Materials Research, vol. 795, 2013, pages 530-534 1022-6680 (Print) 1662-8985 (Online) http://www.scientific.net/AMR.795.530 http://dspace.unimap.edu.my:80/dspace/handle/123456789/35808 10.4028/www.scientific.net/AMR.795.530 en Trans Tech Publications
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Corrosion
Electrochemistry
Magnesium
spellingShingle Corrosion
Electrochemistry
Magnesium
Shaiful Rizam, Shamsudin
Azmi, Rahmat, Assoc. Prof. Dr.
Mahdi, Che Isa
Mohd Nazree, Derman
Abdul Razak, Daud
Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes
description Link to publisher's homepage at http://www.ttp.net/
author2 rizam@unimap.edu.my
author_facet rizam@unimap.edu.my
Shaiful Rizam, Shamsudin
Azmi, Rahmat, Assoc. Prof. Dr.
Mahdi, Che Isa
Mohd Nazree, Derman
Abdul Razak, Daud
format Article
author Shaiful Rizam, Shamsudin
Azmi, Rahmat, Assoc. Prof. Dr.
Mahdi, Che Isa
Mohd Nazree, Derman
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/123456789/35808
_version_ 1643797914815823872
score 13.209306

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