Effects of Scandium on Corrosion Resistance and Mechanical Properties of Cellular Al-based Foams

摘要：

　　Cellular Al-0.24wt.%Sc and Al-0.41wt.%Sc foams with a porosity ranging from 37 to 86% were successfully fabricated via the melt-foaming method with the calcium particles as the thickening agent and titanium hydride as blowing agent.The corrosion rate increased with the increasing of porosity for the cellular Al-0.24wt.%Sc,Al-0.41wt.%Sc and Al foams.Large size Al3Sc precipitates can accelerate the corrosion of the Al foams.However,T6-treatments could improve the corrosion resistance significantly.With T6-treatments,0.24 wt.%Sc addition to Al foams exhibited unconspicuous decrease in the corrosion resistance but much improved strength.

关键词： Al-Sc foams T6-treatment Immersion corrosion Polarization

作者: Li Huang Donghui Yang Hui Wang Feng Ye Zhaoping Lu

作者单位: State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing Institute of Materials and Protection, College of Mechanics and Materials, Hohai University,Nanjing,

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 93-100

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）