Evaluating the corrosion behaviour of magnesium alloy in simulated biological fluid by using SECM to detect hydrogen evolution Jamali, Sina S., Moulton, Simon E., Tallman, Dennis E., Forsyth, Maria, Weber, Jan and Wallace, Gordon G. 2015, Evaluating the corrosion behaviour of magnesium alloy in simulated biological fluid by using SECM to detect hydrogen evolution, Electrochimica acta, vol. 152, pp. 294-301, doi: 10.1016/j.electacta.2014.11.012. Attached Files Name Description MIMEType Size Downloads Title Evaluating the corrosion behaviour of magnesium alloy in simulated biological fluid by using SECM to detect hydrogen evolution Author(s) Jamali, Sina S. Moulton, Simon E. Tallman, Dennis E. Forsyth, Maria orcid.org/0000-0002-4273-8105 Weber, Jan Wallace, Gordon G. Journal name Electrochimica acta Volume number 152 Start page 294 End page 301 Total pages 8 Publisher Elsevier Place of publication Amsterdam, The Netherlands Publication date 2015-01-10 ISSN 0013-4686 Summary Scanning electrochemical microscopy (SECM) in surface generation/tip collection mode is investigated as an assessment tool for studying the corrosion behaviour of magnesium in simulated biological fluid. The technique provides a local map of hydrogen (H2) evolution which alone can be used as a direct measure of corrosion. The H2 generated during corrosion of magnesium is oxidized at the probe(i.e. a Pt ultra micro-electrode);with the magnitude of the current generated due to oxidation being indicative of the intensity of H2 evolution at a local scale on the magnesium surface. This method was calibrated using a cathodically polarized Pt disk to simulate H2 evolution in a controlled condition on a homogeneous surface. Potential interference from dissolving Mg or high local pH was also investigated. The technique was implemented for studying H2 evolution at the surface of AZ31 as a model Mg alloy.SECM results combined with SEM-EDX and profilometry data revealed that local domains of higher H2 evolution on the surface of AZ31 are in close proximityof the observed pitting sites. Language eng DOI 10.1016/j.electacta.2014.11.012 Field of Research 091207 Metals and Alloy Materials 030604 Electrochemistry Socio Economic Objective 870302 Metals (e.g. Composites, Coatings, Bonding) HERDC Research category C1 Refereed article in a scholarly journal ERA Research output type C Journal article Grant ID CE0561616 Copyright notice ©2015, Elsevier Persistent URL http://hdl.handle.net/10536/DRO/DU:30068224 Document type: Journal Article Collections: Institute for Frontier Materials GTP Research Related Links Link Description Connect to published version Go to link with your DU access privileges   Connect to Elements publication management system Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Mon, 15 Dec 2014, 10:24:59 EST Mon, 15 Dec 2014, 10:31:21 EST Tue, 16 Dec 2014, 04:00:31 EST Tue, 02 Jun 2015, 14:45:52 EST Wed, 08 Jul 2015, 06:08:49 EST Mon, 13 Jul 2015, 15:24:08 EST Mon, 13 Jul 2015, 15:27:41 EST Tue, 14 Jul 2015, 09:00:36 EST Fri, 17 Jul 2015, 11:39:49 EST Mon, 12 Oct 2015, 15:45:28 EST Wed, 14 Oct 2015, 14:05:04 EST Fri, 16 Dec 2016, 09:23:25 EST Mon, 23 Jan 2017, 15:11:05 EST Mon, 23 Jan 2017, 15:13:09 EST Filtered Full Citation counts:   Cited 34 times in TR Web of Science Cited 35 times in Scopus Search Google Scholar Access Statistics: 817 Abstract Views, 5 File Downloads  -  Detailed Statistics Created: Mon, 15 Dec 2014, 10:31:21 EST