Advanced Functional and Structural Thin Films and Coatings: Poster Session
Sponsored by: TMS: Thin Films and Interfaces Committee
Program Organizers: Ramana Chintalapalle, University of Texas at El Paso; Adele Carrado, University of Strasbourg; Gerald Ferblantier, University of Strasbourg - IUT LP / ICube Laboratory - CNRS; Karine Mougin, Cnrs, Is2m; Heinz Palkowski, Clausthal University of Technology; Nuggehalli Ravindra, New Jersey Institute of Technology
Monday 5:30 PM
February 28, 2022
Room: Exhibit Hall C
Location: Anaheim Convention Center
Session Chair: Gerald Ferblantier, Icube Laboratory - Strasbourg University; Karine Mougin, CNRS- IS2M
A-2: Corrosion Behaviour of an Aisi 4140 Steel Nitrided by Plasma in a Seawater Medium Solution: Ariosto Medina1; Jesús Valdes1; Claudio Aguilar2; Engelbert Huape1; 1Universidad Michoacana de San Nicolás de Hidalgo; 2Universidad Técnica Federico Santa María
In this work, the plasma nitriding effects on the corrosionbehaviour were studied. After plasma treatments the corrosion resistance of the AISI 4140 steel was evaluated by Tafel extrapolation, linear polarization resistance and electrochemical impedance spectroscopy (EIS) in artificial seawater solution at room temperature. The nitrided surfaces were evaluated by X-ray diffraction (XRD) and optical microscopy(OM) techniques. The corroded surfaces were characterized by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Results shows that nitrided surfaces composed of a mixture of ε-Fe2-3N and γ´-Fe4N nitrides exhibited the best corrosion resistance, allowing stable values of Ecorr kinetics, because in this alloy decreased the corrosion rate by two orders of magnitude compared with the nitrided surfaces composed only of ε-Fe2-3N. EIS results showed that the nitrided surfaces containing flaws, porous or any others discontinuities presented corrosion processes controlled by diffusive processes.
A-3: Incorporation of Metallic Nanoparticles into Alkyd Resin: A Review of their Coating Performance: Ikhazuagbe Ifijen1; Muniratu Maliki2; Stanley Omorogbe1; Ibrahim Danjuma1; 1Rubber Research Institute of Nigeria; 2Department of Chemistry, Edo University Iyamho, Edo State, Nigeria
There is a dramatic increase in alkyd nanocomposites research over the years with the emergence of diverse experimental techniques. This has led to the redefining synthetic processes, analysis and cost control techniques of nanocomposites. The incorporation of nanomaterials into polymer composites can improve properties such as tensile strength, impact and scratch resistance, mechanical properties, drying properties, chemical resistance, thermal stability, electrical conductivity and fire resistance. This improvement is expected due to the collaborative properties of the metallic-nanomaterials (high surface area to volume ratio, small size, extremely small sizes with high density and great functionality per unit space) and alkyd resins (biodegradability, great gloss retention, adaptability, flexibility, durability, good drying properties and weathering resistance). This review examined alkyd resin nanocomposites, possible utilization and the performance of varying types of nano-metallic materials in modifying alkyd resin polymer. The use of metallic nanomaterials has generated alkyd nanocomposites with better coating features which will find increasing applications in anticorrosion, antifouling/antibacterial application, superhydrophobic application, self-cleaning, antiwear and electronics.
A-4: Nanostructured Graphene Thin Films: A Brief Review of Their Fabrication Techniques and Corrosion Protective Performance: Ikhazuagbe Ifijen1; Oscar Aghedo2; Ifeanyi Odiachi3; Stanley Omorogbe1; Ekebafe Olu4; Innocent Onuguh5; 1Rubber Research Institute of Nigeria; 2University of Benin, P.M.B. 1154, Benin City, Nigeria; 3Department of Science Laboratory Technology, Delta State Polytechnic Ogwashi-Uku, Nigeria; 4University of Lagos; 5Department of Chemistry, Igbinedion University,Okada, Edo State, Nigeria
Graphene oxide has attracted so much attention over the last few years owing to its astonishing features and has proven to have a major contribution to the anticorrosive coating industry. A great deal of this attention is motivated by the necessity to realize additional functionalities, to boost the anti-corrosion performance of the graphene oxides and to eventually lengthen the service life of metallic structures. This review covers the properties, fabrication techniques, corrosion protective performance, realistic problems and modification of graphene corrosion protective films.
A-5: The Design of Coatings Developed Using Polyetherimide and Nanocomposites Thereof for Corrosion Protection of Base Metals: Tiffany Sill1; Rachel Davidson1; Lacey Douglas1; Viswanathan Kalyanaraman2; Nikhil Verghese2; Kapil Sheth2; Sarbajit Banerjee1; 1Texas A&M University; 2Sabic
There remain few alternatives to chromium-based coatings for the corrosion protection of aluminum alloys, which are an increasingly popular material for lightweighting of vehicles. Polyetherimide (PEI) polymer-based coatings are an attractive replacement due to their impermeability to water and corrosive species. In this work, PEI was utilized as the continuous phase and the inclusion of exfoliated graphite served to kinetically increase barrier protection via the lengthening of diffusion pathways. Automated spray-coating has allowed for the systematic determination of generalizable heuristics for deposition of pin-hole free polyetherimide nanocomposite films. Mechanisms of corrosion inhibition has been evaluated by monitoring the evolution of electrochemical impedance spectra over the course of 100 days exposure to salt-water solutions. Coupling this data with DC polarization techniques, adhesion testing, and cross-sectional analysis of exposed coatings provides a comprehensive understanding of the mechanisms of corrosion inhibition.
A-6: The Effect of Additives in Hybrid Zr-based Chemical Conversion Coating on the Surface Morphology Chemical Compositions and Corrosion Resistance
: Cheng-Chu Chung1; Xiaoyang Liu1; Donald Vonk2; Bruce Ravel3; Kim Kisslinger4; Xiao Tong4; Gary Halada1; Stanislas Petrash2; Kate Foster2; Yu-chen Chen-Wiegart1; 1Stony Brook University; 2Henkel Corporation; 3National Institute of Standards and Technology; 4Brookhaven National Laboratory
Surface conversion coating is important for a wide range of industrial applications to prevent corrosion and enhance the adhesion of functional and decorative paints to metal parts. In conventional coatings, components such as Cr(VI) or P could lead to health and environmental issues, thus there is a great need to develop new technology. It is also crucial to further understand the coating formation and corrosion prevention mechanisms in the novel systems where new additives are introduced to enhance the coatings’ anticorrosion and adhesion properties. In this work, we studied the effects of additives’ concentration and oxidation states on the formation of Zr-based coatings containing hybrid organic-inorganic additives. A multi-modal approach combining electron microscopy and synchrotron X-ray absorption spectroscopy was utilized to characterize the morphology and chemistry of the coatings. This work advanced our knowledge concerning organic-inorganic additives in the surface conversion coating for the development of future greener coating technology.
A-7: Tribocorrosion Performance of Polymer-derived Ceramic Coatings on 304 Stainless Steel: Wenbo Wang1; Senam Tamakloe1; Wenjun Cai1; Kathy Lu1; 1Virginia Polytechnic Institute and State University
Nowadays, most spent nuclear fuel is enclosed in 304 stainless steel canisters. However, the aggressive and long-term brine storage conditions require anti-corrosion surfaces to keep canisters secure. Ceramic-based coatings such as silicon-based oxide are promising materials to protect canisters due to their low cost, excellent wear and corrosion resistance. In this work, perhydropolysilazane (PHPS)-derived ceramic coatings were synthesized on 304 stainless steel substrate by crosslinking at room temperature and by pyrolysis at 600°C. Potentiodynamic test indicated that the corrosion resistance of the substrate in a 0.6 M NaCl aqueous solution is significantly improved after coating application. Comparing the coatings fabricated at different pyrolysis temperature, better tribocorrosion resistance was observed in the coating synthesized at 600 °C. This work could shed light on the design strategy of corrosion-protective coatings for nuclear waste storage units used in harsh environments.