Simulation analysis on deformation behavior of cold-sprayed TC4 particles in different conditions
Using finite element analysis software LS-DYNA,the impact of different substrate materials on collision process was analyzed by simulating collision process between TC4 particle and substrates(TC4 and Ti).In addition,by changing particle collision angle,non-vertical collision process between particles and matrix is analyzed,and deformation and plastic strain of particles and substrates are studied.Results show that impact of TC4 particles on TC4 substrate and Ti substrate at high speed will produce obvious jet metal sputtering.With increase of impact time,flattening rate of TC4 particles will in-crease,while depth to width ratio of pits will increase.The most ideal is vertical incidence,with largest pit depth and lar-gest effective contact area.The impact of TC4 particles on TC4 substrate is similar to impact of Ti substrate.At the same time,the impact of TC4 particles on TC4 substrate is larger than that on Ti substrate.
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