Laser-guided corrosion control: a new approach to tailor the degradation of Mg-alloys
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
Despite corrosion being commonly seen as a problem to be avoided, applications such as batteries or biodegradable implants do benefit from corrosion‐like phenomena. However, current strategies address corrosion control from a global perspective for a whole component, without considering local adaptations to functionality specifications or inhomogeneous environments. Here, a novel concept is presented: the local control and guidance of corrosion through a laser surface treatment. Immersion tests in saline solution of AZ31 magnesium alloy samples show degradation rates reduced up to 15 times with the treatment, owing to a fast passivation after the induced microstructural modifications. By controlling the treatment conditions, the degradation can be restricted to delimited regions and driven towards specific directions. The applicability of the method for the design of tailored degradation biomedical implants is demonstrated and uses for cathodic protection systems and batteries can also be anticipated.
Date Issued
2021-05-06
Date Acceptance
2021-03-01
Citation
Small, 2021, 17 (18), pp.1-10
ISSN
1613-6810
Publisher
Wiley
Start Page
1
End Page
10
Journal / Book Title
Small
Volume
17
Issue
18
Copyright Statement
© 2021 Wiley‐VCH GmbH. This is the accepted version of the following article: Pou‐Álvarez, P., Riveiro, A., Nóvoa, X. R., Jin, X., del, J., Comesaña, R., Boutinguiza, M., Lusquiños, F., Jones, J. R., Pérez‐Prado, M. T., Pou, J., Laser‐Guided Corrosion Control: A New Approach to Tailor the Degradation of Mg‐Alloys. Small 2021, 2100924, which has been published in final form at https://doi.org/10.1002/smll.202100924
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000631853100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Technology
Chemistry, Multidisciplinary
Chemistry, Physical
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Physics, Applied
Physics, Condensed Matter
Chemistry
Science & Technology - Other Topics
Materials Science
Physics
biodegradation
corrosion
corrosion control
guided corrosion
laser
magnesium
Publication Status
Published
Article Number
ARTN 2100924
Date Publish Online
2021-03-24