工艺参数对LY12铝合金复合涂层的影响  

Effect of Process Parameters on Composie Coating of LY12 Aluminium Alloy

作　　者：杨金花[1] 赵晖[1] 杜春燕[1] 尚刚[1] 

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110159

出　　处：《沈阳理工大学学报》2013年第6期66-70,共5页Journal of Shenyang Ligong University

摘　　要：以恒压模式在NaOH-Na2SiO3电解液中对LY12铝合金进行微弧氧化实验,然后用强流脉冲电子束轰击,采用扫描电镜、XRD、涂层测厚仪等检测手段,研究电参数对复合涂层的影响。结果表明:电压越高,氧化时间越长,微弧氧化膜越厚;电子束复合处理后,涂层变得平整、致密,新相α-Al2O3峰值变高,耐摩擦磨损性能增加。Ceramic coatings were fabricated on the surface of LY12 aluminum alloy by micro-arc oxidation （MAO） method in NaOH-Na2SiO3 solution,the metallographic structure by scanning electrolyte microscope,the thickness were measured by instrument,the influences of different parameters were investigated on the oxide film.The results show that：higher the voltage,longer the oxidation time,thicker the film but more rough.After electron beam complex treatment,the coating became smooth,densified,and wear resistance increased.

关 键 词：LY12铝合金 微弧氧化 电子束 电参数 

分 类 号：TG113[金属学及工艺—物理冶金]