RT Journal Article
T1 Corrosion and wear of PEO coated AZ91/SiC composites
A1 Mingo, B.
A1 Arrabal Durán, Raúl
A1 Mohedano Sánchez, Marta
A1 Pardo Gutiérrez Del Cid, Ángel
A1 Matykina, Endzhe
AB In this work, corrosion and wear resistance of uncoated and PEO coated AZ91/SiC/0-10p composites manufactured by semisolid processing is evaluated by corrosion tests in saline solution and ball-on-disc tests. AZ91/SiC composites show a globular microstructure with SiC clusters located at the interglobular regions. PEO coatings reveal a trilayered structure with thicker, less porous and softer regions at the locations of SiC clusters. Corrosion rate increases with increasing the volume fraction of reinforcement, which shows a cathodic activity and disrupts the continuity of the β-phase network. PEO improves the corrosion resistance, but it is also negatively influenced by the presence of the reinforcement. Tribological tests show a positive effect of the reinforcement on uncoated materials, whereas an opposite effect is found on PEO coated materials, probably due to the detachment of SiC particles from the coating
PB Elsevier
YR 2017
FD 2017-01-15
LK https://hdl.handle.net/20.500.14352/107284
UL https://hdl.handle.net/20.500.14352/107284
LA eng
NO B. Mingo, R. Arrabal, M. Mohedano, A. Pardo, E. Matykina, Corrosion and wear of PEO coated AZ91/SiC composites, Surface and Coatings Technology, Volume 309, 2017, Pages 1023-1032, ISSN 0257-8972, https://doi.org/10.1016/j.surfcoat.2016.10.041.
DS Docta Complutense
RD 3 abr 2025