Under cold spray conditions, the modified Johnson–Cook model was adopted to perform single and multiple particle simulation for spherical and elongated aluminum alloy- Al-6061 feedstock particles. The splat formations were realistically presented; the temperature evolution throughout the deposition process stayed below the melting point of Al-6061, and the feedstock particles exhibited restitution for impact velocities lower than 200 m/s. Feedstock particles with elongated morphology experienced a lower elastic strain energy level than spherical morphology after impact, which implied the relative bond strength was higher for elongated particles than spherical particles. The displacement curves in single particle simulations for both morphologies suggested a spherical particle experienced a greater shock than the elongated particle upon impact. The relative bond strength achieved by multiple particle impact was lower than the single particle impact, even though the displacement curves showed the feedstock particles were individually embedded in the substrate.

在冷喷涂条件下，采用改进的 Johnson-Cook 模型对球形和细长铝合金-Al-6061 原料颗粒进行单颗粒和多颗粒模拟。逼真地呈现出splat编队；整个沉积过程中的温度演变保持在 Al-6061 的熔点以下，并且原料颗粒在低于 200 m/s 的冲击速度下表现出恢复性。具有细长形貌的原料颗粒在冲击后经历比球形形貌更低的弹性应变能水平，这意味着细长形颗粒的相对粘合强度高于球形颗粒。两种形态的单粒子模拟中的位移曲线表明，球形粒子在撞击时比细长粒子经历了更大的冲击。