采用激光冲击、微织构加工、激光复合加工分别对7050铝合金进行了表面处理。在处理后的7050铝合金上制备了TiAlN涂层。利用划痕仪检测了三种表面处理技术下的膜-基结合强度。结果表明:三种表面处理技术都提高了材料的膜-基结合强度。当激光冲击采用3.89 J能量,微织构采用相离的搭接方式与5 W的激光功率时,膜-基结合力达到32.1 N,为未经处理时的2倍以上。 The surface of 7050 aluminum alloy was treated by laser shock, micro-texture processing and laser processing. TiAlN coatings were prepared on the treated 7050 aluminum alloy. The film-based bonding strength of three kinds of surface treatment techniques was tested by a scratch tester. The results show that all three kinds of surface treatment technologies improve the film-base bonding strength of the material. When the laser impact energy is 3.89 J, the micro-texture adopts the lap mode of phase separation and the laser power of 5 W, the film-base bonding force reaches 32.1 N, which is more than 2 times of the untreated one.