A5035752605- Corrosion Behavior and Inhibition
- Magnesium Alloys: Properties and Applications
- Hydrogen embrittlement and corrosion behaviors in metals
- Metal and Thin Film Mechanics
- Non-Destructive Testing Techniques
- Materials Engineering and Processing
- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
Instituto Tecnológico de Mérida
2024
Tecnológico Nacional de México
2024
Center for Research and Advanced Studies of the National Polytechnic Institute
2020-2023
University of Ontario Institute of Technology
2022
Moscow Aviation Institute
2022
Industrial University of Santander
2015
A hybrid material of polystyrene (PS)–ZrO2 was developed by the sol–gel technique and deposited spin-coating on AM60 AM60–AlN nanocomposite surfaces to enhance corrosion resistance in marine environments. PS–ZrO2 with an average thickness ≈305 ± 20 nm dispersed homogeneously, presenting isolated micro–nano-structure defects air trapped inside, which led increase roughness (≈4 times). The wettability coated substrates close hydrophobic border (θCA=90°–94°). samples were exposed for 30 days...
The electrochemical behaviour and surface changes on AA6061-T6 alloy exposed to Caribbean seawater from the Cozumel Channel for 30 days under laminar flow (0.1 m s−1) were studied, contrasting then with stationary (no flow) conditions. Monitoring of open-circuit potential current fluctuations, both considered as noise (EN), employed two nondestructive methods. calculated corrosion current, based Rn, was one order higher in flow. fluctuations transformed frequency domain. Their power spectral...
The initial stages of AM60-AlN nanocomposite and AM60 corrosion behaviors were compared over 30 days exposure to solution (NaCl, Na2SO4 NaHCO3), simulating the marine-coastal environment (SME). incorporation AlN nanoparticles (1.0 wt.%) in alloy matrix favored lower roughness AM60-AlN, associated with grain refinement matrix. During immersion alloys, pH SME shifted alkaline values >9, therefore, solubility aluminum hydroxide phases raised, followed by a slightly higher release Mg-ions...
The present work compared the initial stages of corrosion process development on AM60-AlN metal matrix nanocomposite surface and AM60, during their exposure for 30 days to simulated acid rain solution (SAR). AlN nanoparticles were observed as “attached” those Mn-rich AlMn intermetallic particles, forming clusters. introduction 1.0 wt.% (≈ 80 nm) in AM60 alloy carried a slight grain refinement favored formation denser more protective layer, suggested by electrochemical impedance spectroscopy...
Electroless ZnO (≈900 nm) was deposited on the surface of an Mg-Al alloy (AM60) to reduce its degradation in marine environment. Uncoated and coated samples were exposed SME simulated solution for up 30 days. The AFM optical images revealed that corrosion attack ZnO-AM60 reduced due increase hydrophobicity coating (contact angle ≈91.6°). change pH more alkaline values over time less pronounced (by ≈13%), whereas release Mg2+ ions by 34 times, attributed decrease active sites Mg-matrix...
The effects of temperature, velocity and naphthenic acids concentration in the corrosive mechanism 5%Cr-1%Mo steel were studied a dynamic autoclave by Electrochemical Impedance spectroscopy Potentiodynamic Polarization Curves with an electrochemical cell three electrodes: reference counter electrode was made Au working 5%Cr-1Mo sample. sample exposed to mineral oil-naphthenic solutions different concentrations atmospheric pressure. Contrary effect, temperature has huge influence corrosion:...