本文利用有限元法,研究了等离子喷涂过程中喷涂角度对熔融颗粒沉积微观形貌的影响;计算了金属Ni颗粒和陶瓷Al2O3颗粒在一定喷涂角度下的微观变形形貌和瞬态压力峰值.结果表明,喷涂角度对液滴舍甫等效直径、延展因子、上游比例系数以及瞬态碰撞压力峰都有显著影响.研究结果对进一步深入研究致密涂层的形成以及涂层微观组织与宏观性能之间的关系提供了理论依据.
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