研究了LF6合金薄靶在GCr15高速粒子斜撞击下的损伤行为。研究表明 ,薄靶的损伤行为随粒子速度和入射角度的不同而不同。当粒子入射角α小于某一临界入射角αc 时 ,粒子在靶材的表面会发生跳弹现象 ,如果粒子在碰撞时粉碎 ,一部分粒子碎片可能击穿薄靶 ,一部分粒子碎片可能在靶材表面发生弹跳现象。发生跳弹现象的临界入射角度αc 随粒子速度v0 的增大而减少。当α >αc 时 ,高速粒子在LF6合金靶表面不会发生跳弹现象 ,粒子或击穿薄靶或嵌入到靶材中。发生跳弹现象时 ,LF6薄靶表现出不击穿、极限不击穿和被击穿三种损伤形式 The damage behavior of LF6 alloy thin target under the oblique impact of GCr15 particles was studied. Studies have shown that the damage behavior of thin targets varies with particle velocity and angle of incidence. When the particle incident angle α is less than a critical incident angle αc, the particles will jump on the surface of the target. If the particles are smashed in the collision, part of the particle fragments may penetrate the thin target. Part of the particle fragments may be on the target surface Bouncing occurs. The critical incident angle αc of the jumping phenomenon decreases with the increase of particle velocity v0. When α> αc, high-speed particles in the LF6 alloy target surface will not jump phenomenon, the particles or penetrate the thin target or embedded in the target. In the event of a bouncing, the LF6 thin target showed no breakdown, no breakdown and no breakdown