Abstract
In this study, an investigation on the impacting behavior of cold-sprayed particles using the Eulerian formulation available in ABAQUS/Explicit was conducted with typical copper material. The results show that a jet cannot be formed at an impact velocity less than about 290 m/s, while a continuous jet composed of both particle and substrate materials begins to initially form at about 290 m/s and a maximum equivalent plastic strain plateau can be found, which could be the approximate critical velocity. In addition, the jet presents discontinuities and the splashing causes the loss of material as the impact velocity exceeds the velocity extent of 290-400 m/s. Therefore, through theoretical analysis of the jet morphology, the Eulerian model could provide a prediction of the critical velocity.
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Acknowledgments
The authors would like to thank the following for financial support: Ao-Xiang Star Project of NPU (Northwestern Polytechnical University), the Research Fund of the State Key Laboratory of Solidification Processing (NPU, China) (Grant No. 69-QP-2011), the Program for New Century Excellent Talents in University by the Ministry of Education of China (NECT-08-0463), the National Natural Science Foundation of China (51005180) and the 111 Project (B08040).
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Yu, M., Li, WY., Wang, F.F. et al. Finite Element Simulation of Impacting Behavior of Particles in Cold Spraying by Eulerian Approach. J Therm Spray Tech 21, 745–752 (2012). https://doi.org/10.1007/s11666-011-9717-y
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DOI: https://doi.org/10.1007/s11666-011-9717-y