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激光复合加工对7050铝合金膜-基结合性能影响的研究

Hot Working Technology(2017)

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Abstract
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.
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