Application of a holistic 3D model to estimate state of cold spray titanium particles

摘要: Abstract A validated three dimensional Computational Fluid Dynamics (CFD) model has been utilized to estimate the state of cold spray titanium particles before deposition. holistic approach is adopted predict particle velocity, temperature and location from injection point moment impact onto substrate for a commercially available system. The behavior between nozzle exit surface detailed stagnation conditions 800 °C, 3 MPa 550 °C, 1.4 MPa. size distribution powder also considered. 3D predicts complicated within deposition zone that cannot be arrived at using current one two models. critical velocity efficiency are quantified. estimated significant improvement in when increased 300 °C impact. Merits CFD development new materials additive manufacturing highlighted.