Graphene nanoplatelets in titanium coatings deposited by cold spray: Mechanical properties
Nano-platelets Graphene (GNPs) have emerged as a promising reinforcement for Ti coatings due to their exceptional mechanical and tribological properties. This study investigates the fabrication of Titanium–Graphene Nanoplatelets (Ti-GNPs) coatings using Cold Gas Spray (CS), a technique that preserve...
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Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424028928 |
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| author | Edwin Torres Díaz Alessio Silvello Edwin Rúa Ramirez Rodolpho Fernando Vaz Irene García Cano |
| author_facet | Edwin Torres Díaz Alessio Silvello Edwin Rúa Ramirez Rodolpho Fernando Vaz Irene García Cano |
| author_sort | Edwin Torres Díaz |
| collection | DOAJ |
| description | Nano-platelets Graphene (GNPs) have emerged as a promising reinforcement for Ti coatings due to their exceptional mechanical and tribological properties. This study investigates the fabrication of Titanium–Graphene Nanoplatelets (Ti-GNPs) coatings using Cold Gas Spray (CS), a technique that preserves material integrity by avoiding high-temperature degradation. Multilayer GNPs (0.5 wt%) were incorporated into Grade 1 Ti powder, followed by Heat Treatments (HT) at 700 °C and 1000 °C to enhance cohesion within the composite. Mechanical and tribological tests revealed significant enhancements in the Ti-GNPs coatings. The HT at 1000 °C increased tensile strength to 539.45 MPa and hardness to 264 HV, achieving 28% improvement compared to pure Ti. Wear tests demonstrated a 25% reduction in friction coefficient, attributed to the lubricating effect of GNPs. Microstructural analysis confirmed the successful integration of GNPs with minimal degradation, though Raman spectroscopy indicated minor structural defects at higher temperatures. These findings demonstrate that Ti-GNPs coatings provide superior mechanical performance and wear resistance, offering potential for industrial applications in extreme environments. |
| format | Article |
| id | doaj-art-1404ff3d09b24c5386b4b0b3b5d5067d |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj-art-1404ff3d09b24c5386b4b0b3b5d5067d2025-01-19T06:25:23ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013415491558Graphene nanoplatelets in titanium coatings deposited by cold spray: Mechanical propertiesEdwin Torres Díaz0Alessio Silvello1Edwin Rúa Ramirez2Rodolpho Fernando Vaz3Irene García Cano4Thermal Spray Centre (CPT), Universitat de Barcelona. C/ Martíi Franquès, 1, Barcelona, Spain; Mechanical Engineering, Research USTA (IMECI-USTA), Santo Tomás University, Tunja, ColombiaThermal Spray Centre (CPT), Universitat de Barcelona. C/ Martíi Franquès, 1, Barcelona, Spain; Corresponding author.Thermal Spray Centre (CPT), Universitat de Barcelona. C/ Martíi Franquès, 1, Barcelona, Spain; Mechanical Engineering, Research USTA (IMECI-USTA), Santo Tomás University, Tunja, ColombiaThermal Spray Centre (CPT), Universitat de Barcelona. C/ Martíi Franquès, 1, Barcelona, Spain; Center for Thermal Spray Research (CTSR), Stony Brook University., Room 130 Heavy Engineering Bldg., Stony Brook, NY, United StatesThermal Spray Centre (CPT), Universitat de Barcelona. C/ Martíi Franquès, 1, Barcelona, SpainNano-platelets Graphene (GNPs) have emerged as a promising reinforcement for Ti coatings due to their exceptional mechanical and tribological properties. This study investigates the fabrication of Titanium–Graphene Nanoplatelets (Ti-GNPs) coatings using Cold Gas Spray (CS), a technique that preserves material integrity by avoiding high-temperature degradation. Multilayer GNPs (0.5 wt%) were incorporated into Grade 1 Ti powder, followed by Heat Treatments (HT) at 700 °C and 1000 °C to enhance cohesion within the composite. Mechanical and tribological tests revealed significant enhancements in the Ti-GNPs coatings. The HT at 1000 °C increased tensile strength to 539.45 MPa and hardness to 264 HV, achieving 28% improvement compared to pure Ti. Wear tests demonstrated a 25% reduction in friction coefficient, attributed to the lubricating effect of GNPs. Microstructural analysis confirmed the successful integration of GNPs with minimal degradation, though Raman spectroscopy indicated minor structural defects at higher temperatures. These findings demonstrate that Ti-GNPs coatings provide superior mechanical performance and wear resistance, offering potential for industrial applications in extreme environments.http://www.sciencedirect.com/science/article/pii/S2238785424028928GrapheneMetal matrixCompositesCold sprayHeat treatmentsGraphene nanoplatelets |
| spellingShingle | Edwin Torres Díaz Alessio Silvello Edwin Rúa Ramirez Rodolpho Fernando Vaz Irene García Cano Graphene nanoplatelets in titanium coatings deposited by cold spray: Mechanical properties Journal of Materials Research and Technology Graphene Metal matrix Composites Cold spray Heat treatments Graphene nanoplatelets |
| title | Graphene nanoplatelets in titanium coatings deposited by cold spray: Mechanical properties |
| title_full | Graphene nanoplatelets in titanium coatings deposited by cold spray: Mechanical properties |
| title_fullStr | Graphene nanoplatelets in titanium coatings deposited by cold spray: Mechanical properties |
| title_full_unstemmed | Graphene nanoplatelets in titanium coatings deposited by cold spray: Mechanical properties |
| title_short | Graphene nanoplatelets in titanium coatings deposited by cold spray: Mechanical properties |
| title_sort | graphene nanoplatelets in titanium coatings deposited by cold spray mechanical properties |
| topic | Graphene Metal matrix Composites Cold spray Heat treatments Graphene nanoplatelets |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424028928 |
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