Effect of particle size on the microstructure and properties of kinetic sprayed nickel coatings
| Autor: | Changhee Lee, Jay Jung Kim, Hyuntaek Na, Gyuyeol Bae, Kicheol Kang |
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| Rok vydání: | 2010 |
| Předmět: |
Materials science
Bond strength Metallurgy chemistry.chemical_element Surfaces and Interfaces General Chemistry Condensed Matter Physics Microstructure Kinetic energy Surfaces Coatings and Films Nickel chemistry Materials Chemistry Deposition (phase transition) Particle Particle size Composite material Contact area |
| Zdroj: | Surface and Coatings Technology. 204:3326-3335 |
| ISSN: | 0257-8972 |
| DOI: | 10.1016/j.surfcoat.2010.03.046 |
| Popis: | This study aims to examine the effect of particle size on the microstructure and corresponding properties in kinetic sprayed coatings of commercially pure nickel (CP–Ni) in conjunction with finite element modeling (FEM). Prior to the experiments, the adhesion factors (interface temperature, contact time and contact area), rebound factor (relative recovery energy) and the resultant critical velocities of CP–Ni for different particle sizes and temperatures were estimated by FEM. Based on the simulations, three different sized CP–Ni powders were successfully deposited onto mild steel substrates using a powder preheating system. Here we suggest optimized windows of operation for particle sizes of CP–Ni based on the microstructure and properties of the coatings (i.e. deposition efficiency, bond strength and micro-hardness) which are in good correspondence with the simulation results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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