激光重熔对电弧喷涂Ni-5Al涂层结合强度的影响  

Influence of laser remelting on bond strength of Ni -5A1 coating by arc spraying

作　　者：王吉孝[1] 李长义[1] 滕彬[1] 王小朋[1] 周立涛[1] 

机构地区：[1]机械科学研究院哈尔滨焊接研究所,150028

出　　处：《焊接》2012年第11期41-45,71,共5页Welding & Joining

摘　　要：文中采用双丝电弧喷涂分别对6061-T6铝合金和Q235钢喷涂Ni-5Al涂层,采用不同的激光重熔工艺对Ni-5Al涂层表面进行处理。结果表明,对于6061-T6铝合金电弧喷涂Ni-5Al涂层表面激光重熔处理,涂层与基材的结合强度没有得到明显提高,而对于Q235钢电弧喷涂Ni-5Al涂层表面激光重熔处理,涂层与基材的结合强度得到明显提高,最高提高48.5%。Ni -5A1 coating was prepared on 6061 -T6 aluminum alloy and Q235 steel by twin -wire arc spraying,respectively,and then Ni - 5A1 coating was treated by different laser remelting process.The results show that the bonding strength of the coating on 6061 - T6 aluminum alloy by laser surface remelting is not improved.But the bonding strength of the coating on Q235 steel by laser surface remelting is significantly improved by 48.5%.

关 键 词：激光重熔 电弧喷涂 Ni-5Al 结合强度 

分 类 号：TG174.44[金属学及工艺—金属表面处理]