TC4纤维增强铝复合材料的高速撞击损伤行为

稀有金属材料与工程, 2011, 40(10): 1804-1807.

TC4纤维增强铝复合材料的高速撞击损伤行为

朱德智 ^1, , 陈维平 ^2, , 李元元 ^3, , 武高辉 ^4,

1.华南理工大学,广东广州510640

2.华南理工大学,广东广州510640

3.华南理工大学,广东广州510640

4.哈尔滨工业大学,黑龙江哈尔滨150001

基金项目: 中国博士后科学基金(20090460764) 华南理工大学自然科学青年基金项目

关键词：铝基复合材料 , TC4纤维 , 高速撞击 , 微观组织

Damage Mechanism of (2D-Tif)/Al Composites Against Hypervelocity Impact

针对航天器空间碎片防护材料需求,采用二维编织的TC4纤维作为增强体制备了(2D-Tif)/Al复合材料,并采用二级轻气炮研究了复合材料在高速粒子撞击下的损伤行为及其组织演变规律.结果表明,(2D-Tif)/Al复合材料靶板的破坏以侵彻穿深为主,背面产生了带裂纹的鼓包或发生略微崩落；其抗高速撞击能力优于等厚的LF6基体合金,平均吸能能力比基体合金提高了8.4 J.复合材料内部的基体合金在高速粒子撞击下被严重挤压变形,在远离弹坑部位,基体合金变形减轻,缺陷以微裂纹和微孔洞为主.高强韧Ti纤维的加入起到了承载和吸能作用,有效减缓了基体合金的变形,并抑制了基体合金中绝热剪切带的形成.

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材料期刊网

TC4纤维增强铝复合材料的高速撞击损伤行为

Damage Mechanism of (2D-Tif)/Al Composites Against Hypervelocity Impact

参考文献