کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1659243 | 1008371 | 2010 | 10 صفحه PDF | دانلود رایگان |
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.
Journal: Surface and Coatings Technology - Volume 204, Issue 20, 15 July 2010, Pages 3326–3335