RT Journal Article
T1 Laser‐guided corrosion control: a new approach to tailor the degradation of Mg‐alloys
A1 Pou Álvarez, Pablo
A1 Riveiro Rodríguez, Antonio
A1 Nóvoa Rodríguez, Xosé Ramón
A1 Jin, Xueze
A1 Del Val Garcia, Jesús
A1 Comesaña Piñeiro, Rafael
A1 Boutinguiza Larosi, Mohamed
A1 Lusquiños Rodríguez, Fernando
A1 Jones, Julian Raymond
A1 Pérez Prado, María Teresa
A1 Pou Saracho, Juan María
K1 3303.14 Revestimientos Protectores
AB 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.
PB Small
SN 16136810
YR 2021
FD 2021-03-24
LK http://hdl.handle.net/11093/6168
UL http://hdl.handle.net/11093/6168
LA eng
NO Small, 17(18): 01-10 (2021)
NO Xunta de Galicia | Ref. ED431C 2019/23
DS Investigo
RD 16-sep-2024