| COMPUTATIONAL SIMULATION |
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| Effects of Particle Shape and Temperature on Its Deposition Character in Cold Spray |
| WANG Feng 1,2
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1 College of Power Engineering, Chongqing University, Chongqing 400030;
2 Key Laboratory of Low-grade Energy Utilization Technologies and Systems of Ministry of Education, Chongqing University, Chongqing 400030; |
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Abstract In order to improve magnesium alloy anti-corrosion performance, cold spray technology was adopted as surface modification method and particles deposition process has been simulated. In this work, finite element analysis (FEA) with Arbitrary Lagrange Eulerian (ALE) grid method was used to simulate Al particles deposition behavior on Mg alloy substrate in cold spray. The deformation process and temperature distribution in particle and substrate were investigated. Effects of particle shape, different particle and substrate initial temperature on particle deposition and rebound performance were also considered. Results show that the effect of particle shape on its local deformation and substrate deformation in impact process is significant. It is found that the effects of particle initial shape and velocity on particle rebound kinetic energy rate, substrate crater depth, maximum relative contact area between particle and substrate are obvious. Preheating of particle-substrate system is beneficial to their combination. The distributions of temperature and plastic deformation are symmetric when ellipsoid particle impacts on substrate vertically along its long axis and sphere particle impacts on substrate vertically. Results can be used as a reference for cold spray experiment parameters selection and optimization.
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Published: 25 July 2017
Online: 2018-05-04
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1 Papyrin A, Kosarev V, Klinkov S, et al. Cold spray technology [M].Amsterdam: Elsevier,2007.
2 Jin Y M, Cho J H, Park D Y,et al. manufacturing and macroscopic properties of cold sprayed Cu-Ln coating material for sputtering target [J]. J Thermal Spray Technol,2011,20(3):497.
3 Legoux J G, Irissou E, Moreau C. Effect of substrate temperature on the formation mechanism of cold-sprayed aluminum, zinc and tin coatings [J]. J Thermal Spray Technol,2007,16(5-6):619.
4 Cinca N, Rebled J M, Estradé S, et al. Influence of the particle morphology on the cold gas spray deposition behaviour of titanium on aluminum light alloys [J]. J Alloys Compd,2013,554(2):89.
5 Jeandin M, Rolland G, Descurninges L L, et al. Which powders for cold spray? [J]. Surf Eng,2015,30(5):291.
6 Sova A, Grigoriev S, Okunkova A, et al. Potential of cold gas dynamic spray as additive manufacturing technology [J]. Int J Adv Manuf Technol,2013,69(9-12):2269.
7 Wang F, et al. Catalyst coating deposition behavior by cold spray for fuel reforming [J]. Int J Hydrogen Energy,2014,39(25):13852.
8 Deforce B S, Eden T J, Potter J K. Cold spray Al-5% Mg coatings for the corrosion protection of magnesium alloys [J]. J Thermal Spray Technol,2011,20(6):1352.
9 Rolink G, Weisheit A, Biermann T, et al. Investigations of laser clad, thermal sprayed and laser remelted AlSi20-coatings on magnesium alloy AZ31B under constant and cycling thermal load [J]. Surf Coat Technol,2014,259:751.
10 杨立山. 镁合金部件冷喷涂纯铝防腐蚀涂层在舰载机上的应用研究[J]. 科技创新与应用,2016,30(33):28.
11 Guetta S, Berger M H, Borit F, et al. Influence of particle velocity on adhesion of cold-sprayed splats[J]. J Thermal Spray Technol,2009,18(3):331.
12 Wang F, Zhao M. Simulation of particles deposition behavior in cold sprayed Mg anti-corrosion coating [J]. Mater Manuf Processes,2016,31(11):1483. |
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2017, Vol. 31 
