Droplet spraying of aluminum on magnesium
来源期刊：中南大学学报(英文版)2012年第11期
论文作者：XIE Kun(谢鲲) YUE Li-jie(岳丽杰) XIA Peng-cheng(夏鹏成) CAO Mei-qing(曹梅青) DU Yuan-chao(杜远超)
文章页码：3028 - 3032
Key words：droplet spraying; coating; magnesium; corrosion resistance; rapid solidification
Abstract: An Al coating on Mg substrate was achieved by droplet spraying treatment. The microstructure was studied by electron probe microanalysis (EPMA) and X-ray diffraction (XRD). The coating layer is composed of Al phase and exhibits superior corrosion resistance. The formation of the coating is mainly attributed to the obstruction of expansion of the transition zone by primarily solidified Mg17Al12 during rapid cooling, and the diffusion is restricted in a thin layer. These results show that droplet spraying is a promising way to protect magnesium by using corrosion-resistant materials available now.
XIE Kun(谢鲲), YUE Li-jie(岳丽杰), XIA Peng-cheng(夏鹏成), CAO Mei-qing(曹梅青), DU Yuan-chao(杜远超)
(School of Materials Science and Engineering,
Shandong University of Scince and Technology, Qingdao 266590, China)
Abstract:An Al coating on Mg substrate was achieved by droplet spraying treatment. The microstructure was studied by electron probe microanalysis (EPMA) and X-ray diffraction (XRD). The coating layer is composed of Al phase and exhibits superior corrosion resistance. The formation of the coating is mainly attributed to the obstruction of expansion of the transition zone by primarily solidified Mg17Al12 during rapid cooling, and the diffusion is restricted in a thin layer. These results show that droplet spraying is a promising way to protect magnesium by using corrosion-resistant materials available now.
Key words:droplet spraying; coating; magnesium; corrosion resistance; rapid solidification
