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Quantifying the Role of Transition Metal Plating in the Cathodic Activation of Corroding Magnesium

Emmanouela Michailidou, Hamilton McMurray, Geraint Williams Orcid Logo

ECS Transactions, Volume: 75, Issue: 27, Pages: 141 - 148

Swansea University Authors: Hamilton McMurray, Geraint Williams Orcid Logo

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DOI (Published version): 10.1149/07527.0141ecst

Abstract

This paper examines the effect that transition metal ions have on the corrosion behaviour of high purity magnesium. A series of experiments indicate the ability of the selected transition metal ions to accelerate corrosion through cathodic (re)plating aiming to gain an insight on the Mg corrosion ac...

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Published in: ECS Transactions
ISSN: 1938-6737 1938-5862
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa32933
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spelling 2017-06-19T15:33:09.4817053 v2 32933 2017-04-05 Quantifying the Role of Transition Metal Plating in the Cathodic Activation of Corroding Magnesium 56fc1b17ffc3bdf6039dc05c6eba7f2a Hamilton McMurray Hamilton McMurray true false 0d8fc8d44e2a3c88ce61832f66f20d82 0000-0002-3399-5142 Geraint Williams Geraint Williams true false 2017-04-05 FGSEN This paper examines the effect that transition metal ions have on the corrosion behaviour of high purity magnesium. A series of experiments indicate the ability of the selected transition metal ions to accelerate corrosion through cathodic (re)plating aiming to gain an insight on the Mg corrosion activation described in recent publications. High purity magnesium samples were used in conjunction with known additions of Fe2+, Cu2+, Zn2+ and Mn2+ cations. The results indicate that the presence of transition metal ions in the corrosive electrolyte leads to transition metal (re)plating and to an increase of the magnesium corrosion rate. By systematically varying the transition metal ion concentration it was possible to determine the relative efficiencies of the selected metal cations. It was also observed that the metal (re)plating process and the efficiency of the cathodic activation were limited by the formation of insoluble transition metal (hydr)oxide precipitates and the time-dependent hydrolysis. Journal Article ECS Transactions 75 27 141 148 1938-6737 1938-5862 31 12 2017 2017-12-31 10.1149/07527.0141ecst COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2017-06-19T15:33:09.4817053 2017-04-05T10:01:05.4536511 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Emmanouela Michailidou 1 Hamilton McMurray 2 Geraint Williams 0000-0002-3399-5142 3 0032933-07042017110921.pdf michailidou2017.pdf 2017-04-07T11:09:21.2800000 Output 850514 application/pdf Accepted Manuscript true 2017-04-07T00:00:00.0000000 true eng
title Quantifying the Role of Transition Metal Plating in the Cathodic Activation of Corroding Magnesium
spellingShingle Quantifying the Role of Transition Metal Plating in the Cathodic Activation of Corroding Magnesium
Hamilton McMurray
Geraint Williams
title_short Quantifying the Role of Transition Metal Plating in the Cathodic Activation of Corroding Magnesium
title_full Quantifying the Role of Transition Metal Plating in the Cathodic Activation of Corroding Magnesium
title_fullStr Quantifying the Role of Transition Metal Plating in the Cathodic Activation of Corroding Magnesium
title_full_unstemmed Quantifying the Role of Transition Metal Plating in the Cathodic Activation of Corroding Magnesium
title_sort Quantifying the Role of Transition Metal Plating in the Cathodic Activation of Corroding Magnesium
author_id_str_mv 56fc1b17ffc3bdf6039dc05c6eba7f2a
0d8fc8d44e2a3c88ce61832f66f20d82
author_id_fullname_str_mv 56fc1b17ffc3bdf6039dc05c6eba7f2a_***_Hamilton McMurray
0d8fc8d44e2a3c88ce61832f66f20d82_***_Geraint Williams
author Hamilton McMurray
Geraint Williams
author2 Emmanouela Michailidou
Hamilton McMurray
Geraint Williams
format Journal article
container_title ECS Transactions
container_volume 75
container_issue 27
container_start_page 141
publishDate 2017
institution Swansea University
issn 1938-6737
1938-5862
doi_str_mv 10.1149/07527.0141ecst
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description This paper examines the effect that transition metal ions have on the corrosion behaviour of high purity magnesium. A series of experiments indicate the ability of the selected transition metal ions to accelerate corrosion through cathodic (re)plating aiming to gain an insight on the Mg corrosion activation described in recent publications. High purity magnesium samples were used in conjunction with known additions of Fe2+, Cu2+, Zn2+ and Mn2+ cations. The results indicate that the presence of transition metal ions in the corrosive electrolyte leads to transition metal (re)plating and to an increase of the magnesium corrosion rate. By systematically varying the transition metal ion concentration it was possible to determine the relative efficiencies of the selected metal cations. It was also observed that the metal (re)plating process and the efficiency of the cathodic activation were limited by the formation of insoluble transition metal (hydr)oxide precipitates and the time-dependent hydrolysis.
published_date 2017-12-31T03:40:31Z
_version_ 1763751840956022784
score 11.016235

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