The research of corrosion resistance of aluminum-bronze surfacing layer

摘要：

　　Aluminum-bronze was surfacing on low carbon steel in different surfacing conditions by using reverse polarity weak plasma arc.The microstructure of surfacing layer has been studied by means of optical metallograghy and X-ray diffraction.The behavior of electrochemical corrosion in PH=8.0,3.5% NaCl solution has been studied by using the Tafel polarization method.The results show that the corrosion of al-bronze surfacing layer performs best in 3.5% NaCl solution; when surfacing current is 90A,the al-bronze surfacing layer obtains the best corrosion resistance.Then,with the increasing of surfacing current,the corrosion resistance of surfacing layer is getting worse.The microstructure is compose of (α+γ) phase and a-phase.The (α +γ) phase suffers a dealminization preferentially,α-phase has the best corrosion resistance.

关键词： aluminum-bronze plasma arc surfacing corrosion resistance microstructure

作者: SU Yun-hai LIU Guang-chao WU De-guang LIU Zheng-jun

作者单位: School of Material Science and Engineering,Shenyang University of Technology,Shenyang,China,110870

会议类型: 国际会议

会议名称: the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT-2012)(2012年电机工程与信息技术国际会议)

会议地点: 沈阳

会议语种:英文

页码: 1495-1498

在线出版日期: 2012-09-26（万方平台首次上网日期，不代表论文的发表时间）