任智强,孙瑜,叶瑞云.镁合金表面激光电弧复合熔覆 5556 铝合金工艺研究[J].热喷涂技术,2022,14(3):82~90.
镁合金表面激光电弧复合熔覆 5556 铝合金工艺研究
Study on the Laser-electric Arc Cladding Behaviorof 5566 Aluminum Alloy Layer on Magnesium Alloy
  
DOI:DOI 10.3969/j.issn.1674-7127.2022.03-010
中文关键词:  镁合金  铝合金  激光熔覆  熔覆层  激光摆动
英文关键词:Magnesium alloy  Aluminum alloy  Laser cladding  Cladding layer  Laser swing
基金项目:
        
作者单位
任智强 陆军装甲兵学院
孙瑜 陆军装甲兵学院
叶瑞云 中国农垦经济发展中心
摘要点击次数: 14
全文下载次数: 29
中文摘要:
      铝合金熔覆是轻量化镁合金表面涂层防护的重要方法。 本研究使用 AZ80A 镁合金作为基材, 使用 5556 铝 合金作为熔覆合金, 并使用激光电弧复合熔覆进行了铝合金熔覆层制备。 对熔覆层组织进行了分析, 重点研究了 激光摆动对熔覆层品质的影响。 结果表明, 当激光无摆动时, 熔覆层宽度有限, 无法正常形成各道次熔覆层的有 效搭接, 且缺陷较多。 在增加激光摆幅的情况下, 激光加热能量会更均匀地在镁合金基材表面分散, 有效增加了 熔宽, 提升了各道次熔覆层的搭接率, 促进内部缺陷更少、 品质更高的连续熔覆层的形成。
英文摘要:
      Cladding of aluminum alloys is an important approach for protection of magnesium alloys. In this study, AZ80A magnesium alloy was used as the substrate material while 5556 aluminum alloy as the cladding material. Laser-electric arc cladding technique was applied to prepare the aluminum cladding layers. The microstructure of the cladding layers was analyzed, especially by focusing on the influence of the laser swing on the cladding layers quality. The results showed that the cladding width was small without laser swing, which caused limited connection of the cladding paths and higher amount of defects. When the laser swing was applied, the energy of the laser beam was absorbed by the magnesium substrate more uniformly. With the increase of the cladding layer width, the connection ratio of the cladding paths was improved, which promoted the formation of continuous cladding layers with less defects and higher quality.
查看全文  查看/发表评论  下载PDF阅读器
关闭